C#: Add float an double overloads to Mathf

- Add `float` and `double` overloads to all methods of `Mathf`.
This allows the methods to be usable with `float`, `double` or `real_t`.
- Use `System.MathF` in the `float` overloads which may result in
better performance.
- Constants remain as `real_t` for the time being.
- Add aggresive inlining for methods that wrap `System.Math` calls.

2 files changed, 1049 insertions, 172 deletions

diff --git a/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs b/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs
index 137a42a6de..ca0032df73 100644
--- a/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs
+++ b/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Runtime.CompilerServices;
 
 namespace Godot
 {
@@ -35,15 +36,18 @@ namespace Godot
         public const real_t NaN = real_t.NaN;
 
         // 0.0174532924f and 0.0174532925199433
-        private const real_t _degToRadConst = (real_t)0.0174532925199432957692369077M;
+        private const float _degToRadConstF = (float)0.0174532925199432957692369077M;
+        private const double _degToRadConstD = (double)0.0174532925199432957692369077M;
         // 57.29578f and 57.2957795130823
-        private const real_t _radToDegConst = (real_t)57.295779513082320876798154814M;
+        private const float _radToDegConstF = (float)57.295779513082320876798154814M;
+        private const double _radToDegConstD = (double)57.295779513082320876798154814M;
 
         /// <summary>
         /// Returns the absolute value of <paramref name="s"/> (i.e. positive value).
         /// </summary>
         /// <param name="s">The input number.</param>
         /// <returns>The absolute value of <paramref name="s"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static int Abs(int s)
         {
             return Math.Abs(s);
@@ -54,7 +58,19 @@ namespace Godot
         /// </summary>
         /// <param name="s">The input number.</param>
         /// <returns>The absolute value of <paramref name="s"/>.</returns>
-        public static real_t Abs(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Abs(float s)
+        {
+            return Math.Abs(s);
+        }
+
+        /// <summary>
+        /// Returns the absolute value of <paramref name="s"/> (i.e. positive value).
+        /// </summary>
+        /// <param name="s">The input number.</param>
+        /// <returns>The absolute value of <paramref name="s"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Abs(double s)
         {
             return Math.Abs(s);
         }
@@ -67,9 +83,38 @@ namespace Godot
         /// <returns>
         /// An angle that would result in the given cosine value. On the range <c>0</c> to <c>Tau/2</c>.
         /// </returns>
-        public static real_t Acos(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Acos(float s)
         {
-            return (real_t)Math.Acos(s);
+            return MathF.Acos(s);
+        }
+
+        /// <summary>
+        /// Returns the arc cosine of <paramref name="s"/> in radians.
+        /// Use to get the angle of cosine <paramref name="s"/>.
+        /// </summary>
+        /// <param name="s">The input cosine value. Must be on the range of -1.0 to 1.0.</param>
+        /// <returns>
+        /// An angle that would result in the given cosine value. On the range <c>0</c> to <c>Tau/2</c>.
+        /// </returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Acos(double s)
+        {
+            return Math.Acos(s);
+        }
+
+        /// <summary>
+        /// Returns the arc sine of <paramref name="s"/> in radians.
+        /// Use to get the angle of sine <paramref name="s"/>.
+        /// </summary>
+        /// <param name="s">The input sine value. Must be on the range of -1.0 to 1.0.</param>
+        /// <returns>
+        /// An angle that would result in the given sine value. On the range <c>-Tau/4</c> to <c>Tau/4</c>.
+        /// </returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Asin(float s)
+        {
+            return MathF.Asin(s);
         }
 
         /// <summary>
@@ -80,9 +125,10 @@ namespace Godot
         /// <returns>
         /// An angle that would result in the given sine value. On the range <c>-Tau/4</c> to <c>Tau/4</c>.
         /// </returns>
-        public static real_t Asin(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Asin(double s)
         {
-            return (real_t)Math.Asin(s);
+            return Math.Asin(s);
         }
 
         /// <summary>
@@ -90,15 +136,51 @@ namespace Godot
         /// Use to get the angle of tangent <paramref name="s"/>.
         ///
         /// The method cannot know in which quadrant the angle should fall.
-        /// See <see cref="Atan2(real_t, real_t)"/> if you have both <c>y</c> and <c>x</c>.
+        /// See <see cref="Atan2(float, float)"/> if you have both <c>y</c> and <c>x</c>.
         /// </summary>
         /// <param name="s">The input tangent value.</param>
         /// <returns>
         /// An angle that would result in the given tangent value. On the range <c>-Tau/4</c> to <c>Tau/4</c>.
         /// </returns>
-        public static real_t Atan(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Atan(float s)
         {
-            return (real_t)Math.Atan(s);
+            return MathF.Atan(s);
+        }
+
+        /// <summary>
+        /// Returns the arc tangent of <paramref name="s"/> in radians.
+        /// Use to get the angle of tangent <paramref name="s"/>.
+        ///
+        /// The method cannot know in which quadrant the angle should fall.
+        /// See <see cref="Atan2(double, double)"/> if you have both <c>y</c> and <c>x</c>.
+        /// </summary>
+        /// <param name="s">The input tangent value.</param>
+        /// <returns>
+        /// An angle that would result in the given tangent value. On the range <c>-Tau/4</c> to <c>Tau/4</c>.
+        /// </returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Atan(double s)
+        {
+            return Math.Atan(s);
+        }
+
+        /// <summary>
+        /// Returns the arc tangent of <paramref name="y"/> and <paramref name="x"/> in radians.
+        /// Use to get the angle of the tangent of <c>y/x</c>. To compute the value, the method takes into
+        /// account the sign of both arguments in order to determine the quadrant.
+        ///
+        /// Important note: The Y coordinate comes first, by convention.
+        /// </summary>
+        /// <param name="y">The Y coordinate of the point to find the angle to.</param>
+        /// <param name="x">The X coordinate of the point to find the angle to.</param>
+        /// <returns>
+        /// An angle that would result in the given tangent value. On the range <c>-Tau/2</c> to <c>Tau/2</c>.
+        /// </returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Atan2(float y, float x)
+        {
+            return MathF.Atan2(y, x);
         }
 
         /// <summary>
@@ -113,9 +195,21 @@ namespace Godot
         /// <returns>
         /// An angle that would result in the given tangent value. On the range <c>-Tau/2</c> to <c>Tau/2</c>.
         /// </returns>
-        public static real_t Atan2(real_t y, real_t x)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Atan2(double y, double x)
+        {
+            return Math.Atan2(y, x);
+        }
+
+        /// <summary>
+        /// Rounds <paramref name="s"/> upward (towards positive infinity).
+        /// </summary>
+        /// <param name="s">The number to ceil.</param>
+        /// <returns>The smallest whole number that is not less than <paramref name="s"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Ceil(float s)
         {
-            return (real_t)Math.Atan2(y, x);
+            return MathF.Ceiling(s);
         }
 
         /// <summary>
@@ -123,9 +217,10 @@ namespace Godot
         /// </summary>
         /// <param name="s">The number to ceil.</param>
         /// <returns>The smallest whole number that is not less than <paramref name="s"/>.</returns>
-        public static real_t Ceil(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Ceil(double s)
         {
-            return (real_t)Math.Ceiling(s);
+            return Math.Ceiling(s);
         }
 
         /// <summary>
@@ -136,9 +231,24 @@ namespace Godot
         /// <param name="min">The minimum allowed value.</param>
         /// <param name="max">The maximum allowed value.</param>
         /// <returns>The clamped value.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static int Clamp(int value, int min, int max)
         {
-            return value < min ? min : value > max ? max : value;
+            return Math.Clamp(value, min, max);
+        }
+
+        /// <summary>
+        /// Clamps a <paramref name="value"/> so that it is not less than <paramref name="min"/>
+        /// and not more than <paramref name="max"/>.
+        /// </summary>
+        /// <param name="value">The value to clamp.</param>
+        /// <param name="min">The minimum allowed value.</param>
+        /// <param name="max">The maximum allowed value.</param>
+        /// <returns>The clamped value.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Clamp(float value, float min, float max)
+        {
+            return Math.Clamp(value, min, max);
         }
 
         /// <summary>
@@ -149,9 +259,10 @@ namespace Godot
         /// <param name="min">The minimum allowed value.</param>
         /// <param name="max">The maximum allowed value.</param>
         /// <returns>The clamped value.</returns>
-        public static real_t Clamp(real_t value, real_t min, real_t max)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Clamp(double value, double min, double max)
         {
-            return value < min ? min : value > max ? max : value;
+            return Math.Clamp(value, min, max);
         }
 
         /// <summary>
@@ -159,9 +270,21 @@ namespace Godot
         /// </summary>
         /// <param name="s">The angle in radians.</param>
         /// <returns>The cosine of that angle.</returns>
-        public static real_t Cos(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Cos(float s)
         {
-            return (real_t)Math.Cos(s);
+            return MathF.Cos(s);
+        }
+
+        /// <summary>
+        /// Returns the cosine of angle <paramref name="s"/> in radians.
+        /// </summary>
+        /// <param name="s">The angle in radians.</param>
+        /// <returns>The cosine of that angle.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Cos(double s)
+        {
+            return Math.Cos(s);
         }
 
         /// <summary>
@@ -169,9 +292,21 @@ namespace Godot
         /// </summary>
         /// <param name="s">The angle in radians.</param>
         /// <returns>The hyperbolic cosine of that angle.</returns>
-        public static real_t Cosh(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Cosh(float s)
         {
-            return (real_t)Math.Cosh(s);
+            return MathF.Cosh(s);
+        }
+
+        /// <summary>
+        /// Returns the hyperbolic cosine of angle <paramref name="s"/> in radians.
+        /// </summary>
+        /// <param name="s">The angle in radians.</param>
+        /// <returns>The hyperbolic cosine of that angle.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Cosh(double s)
+        {
+            return Math.Cosh(s);
         }
 
         /// <summary>
@@ -184,7 +319,7 @@ namespace Godot
         /// <param name="post">The value which after "to" value for interpolation.</param>
         /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
         /// <returns>The resulting value of the interpolation.</returns>
-        public static real_t CubicInterpolate(real_t from, real_t to, real_t pre, real_t post, real_t weight)
+        public static float CubicInterpolate(float from, float to, float pre, float post, float weight)
         {
             return 0.5f *
                     ((from * 2.0f) +
@@ -194,9 +329,28 @@ namespace Godot
         }
 
         /// <summary>
+        /// Cubic interpolates between two values by the factor defined in <paramref name="weight"/>
+        /// with pre and post values.
+        /// </summary>
+        /// <param name="from">The start value for interpolation.</param>
+        /// <param name="to">The destination value for interpolation.</param>
+        /// <param name="pre">The value which before "from" value for interpolation.</param>
+        /// <param name="post">The value which after "to" value for interpolation.</param>
+        /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
+        /// <returns>The resulting value of the interpolation.</returns>
+        public static double CubicInterpolate(double from, double to, double pre, double post, double weight)
+        {
+            return 0.5 *
+                    ((from * 2.0) +
+                            (-pre + to) * weight +
+                            (2.0 * pre - 5.0 * from + 4.0 * to - post) * (weight * weight) +
+                            (-pre + 3.0 * from - 3.0 * to + post) * (weight * weight * weight));
+        }
+
+        /// <summary>
         /// Cubic interpolates between two rotation values with shortest path
         /// by the factor defined in <paramref name="weight"/> with pre and post values.
-        /// See also <see cref="LerpAngle"/>.
+        /// See also <see cref="LerpAngle(float, float, float)"/>.
         /// </summary>
         /// <param name="from">The start value for interpolation.</param>
         /// <param name="to">The destination value for interpolation.</param>
@@ -204,18 +358,45 @@ namespace Godot
         /// <param name="post">The value which after "to" value for interpolation.</param>
         /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
         /// <returns>The resulting value of the interpolation.</returns>
-        public static real_t CubicInterpolateAngle(real_t from, real_t to, real_t pre, real_t post, real_t weight)
+        public static float CubicInterpolateAngle(float from, float to, float pre, float post, float weight)
         {
-            real_t fromRot = from % Mathf.Tau;
+            float fromRot = from % MathF.Tau;
 
-            real_t preDiff = (pre - fromRot) % Mathf.Tau;
-            real_t preRot = fromRot + (2.0f * preDiff) % Mathf.Tau - preDiff;
+            float preDiff = (pre - fromRot) % MathF.Tau;
+            float preRot = fromRot + (2.0f * preDiff) % MathF.Tau - preDiff;
 
-            real_t toDiff = (to - fromRot) % Mathf.Tau;
-            real_t toRot = fromRot + (2.0f * toDiff) % Mathf.Tau - toDiff;
+            float toDiff = (to - fromRot) % MathF.Tau;
+            float toRot = fromRot + (2.0f * toDiff) % MathF.Tau - toDiff;
 
-            real_t postDiff = (post - toRot) % Mathf.Tau;
-            real_t postRot = toRot + (2.0f * postDiff) % Mathf.Tau - postDiff;
+            float postDiff = (post - toRot) % MathF.Tau;
+            float postRot = toRot + (2.0f * postDiff) % MathF.Tau - postDiff;
+
+            return CubicInterpolate(fromRot, toRot, preRot, postRot, weight);
+        }
+
+        /// <summary>
+        /// Cubic interpolates between two rotation values with shortest path
+        /// by the factor defined in <paramref name="weight"/> with pre and post values.
+        /// See also <see cref="LerpAngle(double, double, double)"/>.
+        /// </summary>
+        /// <param name="from">The start value for interpolation.</param>
+        /// <param name="to">The destination value for interpolation.</param>
+        /// <param name="pre">The value which before "from" value for interpolation.</param>
+        /// <param name="post">The value which after "to" value for interpolation.</param>
+        /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
+        /// <returns>The resulting value of the interpolation.</returns>
+        public static double CubicInterpolateAngle(double from, double to, double pre, double post, double weight)
+        {
+            double fromRot = from % Math.Tau;
+
+            double preDiff = (pre - fromRot) % Math.Tau;
+            double preRot = fromRot + (2.0 * preDiff) % Math.Tau - preDiff;
+
+            double toDiff = (to - fromRot) % Math.Tau;
+            double toRot = fromRot + (2.0 * toDiff) % Math.Tau - toDiff;
+
+            double postDiff = (post - toRot) % Math.Tau;
+            double postRot = toRot + (2.0 * postDiff) % Math.Tau - postDiff;
 
             return CubicInterpolate(fromRot, toRot, preRot, postRot, weight);
         }
@@ -223,7 +404,8 @@ namespace Godot
         /// <summary>
         /// Cubic interpolates between two values by the factor defined in <paramref name="weight"/>
         /// with pre and post values.
-        /// It can perform smoother interpolation than <see cref="CubicInterpolate"/>
+        /// It can perform smoother interpolation than
+        /// <see cref="CubicInterpolate(float, float, float, float, float)"/>
         /// by the time values.
         /// </summary>
         /// <param name="from">The start value for interpolation.</param>
@@ -235,23 +417,52 @@ namespace Godot
         /// <param name="preT"></param>
         /// <param name="postT"></param>
         /// <returns>The resulting value of the interpolation.</returns>
-        public static real_t CubicInterpolateInTime(real_t from, real_t to, real_t pre, real_t post, real_t weight, real_t toT, real_t preT, real_t postT)
+        public static float CubicInterpolateInTime(float from, float to, float pre, float post, float weight, float toT, float preT, float postT)
         {
             /* Barry-Goldman method */
-            real_t t = Lerp(0.0f, toT, weight);
-            real_t a1 = Lerp(pre, from, preT == 0 ? 0.0f : (t - preT) / -preT);
-            real_t a2 = Lerp(from, to, toT == 0 ? 0.5f : t / toT);
-            real_t a3 = Lerp(to, post, postT - toT == 0 ? 1.0f : (t - toT) / (postT - toT));
-            real_t b1 = Lerp(a1, a2, toT - preT == 0 ? 0.0f : (t - preT) / (toT - preT));
-            real_t b2 = Lerp(a2, a3, postT == 0 ? 1.0f : t / postT);
+            float t = Lerp(0.0f, toT, weight);
+            float a1 = Lerp(pre, from, preT == 0 ? 0.0f : (t - preT) / -preT);
+            float a2 = Lerp(from, to, toT == 0 ? 0.5f : t / toT);
+            float a3 = Lerp(to, post, postT - toT == 0 ? 1.0f : (t - toT) / (postT - toT));
+            float b1 = Lerp(a1, a2, toT - preT == 0 ? 0.0f : (t - preT) / (toT - preT));
+            float b2 = Lerp(a2, a3, postT == 0 ? 1.0f : t / postT);
             return Lerp(b1, b2, toT == 0 ? 0.5f : t / toT);
         }
 
         /// <summary>
+        /// Cubic interpolates between two values by the factor defined in <paramref name="weight"/>
+        /// with pre and post values.
+        /// It can perform smoother interpolation than
+        /// <see cref="CubicInterpolate(double, double, double, double, double)"/>
+        /// by the time values.
+        /// </summary>
+        /// <param name="from">The start value for interpolation.</param>
+        /// <param name="to">The destination value for interpolation.</param>
+        /// <param name="pre">The value which before "from" value for interpolation.</param>
+        /// <param name="post">The value which after "to" value for interpolation.</param>
+        /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
+        /// <param name="toT"></param>
+        /// <param name="preT"></param>
+        /// <param name="postT"></param>
+        /// <returns>The resulting value of the interpolation.</returns>
+        public static double CubicInterpolateInTime(double from, double to, double pre, double post, double weight, double toT, double preT, double postT)
+        {
+            /* Barry-Goldman method */
+            double t = Lerp(0.0, toT, weight);
+            double a1 = Lerp(pre, from, preT == 0 ? 0.0 : (t - preT) / -preT);
+            double a2 = Lerp(from, to, toT == 0 ? 0.5 : t / toT);
+            double a3 = Lerp(to, post, postT - toT == 0 ? 1.0 : (t - toT) / (postT - toT));
+            double b1 = Lerp(a1, a2, toT - preT == 0 ? 0.0 : (t - preT) / (toT - preT));
+            double b2 = Lerp(a2, a3, postT == 0 ? 1.0 : t / postT);
+            return Lerp(b1, b2, toT == 0 ? 0.5 : t / toT);
+        }
+
+        /// <summary>
         /// Cubic interpolates between two rotation values with shortest path
         /// by the factor defined in <paramref name="weight"/> with pre and post values.
-        /// See also <see cref="LerpAngle"/>.
-        /// It can perform smoother interpolation than <see cref="CubicInterpolateAngle"/>
+        /// See also <see cref="LerpAngle(float, float, float)"/>.
+        /// It can perform smoother interpolation than
+        /// <see cref="CubicInterpolateAngle(float, float, float, float, float)"/>
         /// by the time values.
         /// </summary>
         /// <param name="from">The start value for interpolation.</param>
@@ -263,24 +474,78 @@ namespace Godot
         /// <param name="preT"></param>
         /// <param name="postT"></param>
         /// <returns>The resulting value of the interpolation.</returns>
-        public static real_t CubicInterpolateAngleInTime(real_t from, real_t to, real_t pre, real_t post, real_t weight,
-                    real_t toT, real_t preT, real_t postT)
+        public static float CubicInterpolateAngleInTime(float from, float to, float pre, float post, float weight, float toT, float preT, float postT)
         {
-            real_t fromRot = from % Mathf.Tau;
+            float fromRot = from % MathF.Tau;
 
-            real_t preDiff = (pre - fromRot) % Mathf.Tau;
-            real_t preRot = fromRot + (2.0f * preDiff) % Mathf.Tau - preDiff;
+            float preDiff = (pre - fromRot) % MathF.Tau;
+            float preRot = fromRot + (2.0f * preDiff) % MathF.Tau - preDiff;
 
-            real_t toDiff = (to - fromRot) % Mathf.Tau;
-            real_t toRot = fromRot + (2.0f * toDiff) % Mathf.Tau - toDiff;
+            float toDiff = (to - fromRot) % MathF.Tau;
+            float toRot = fromRot + (2.0f * toDiff) % MathF.Tau - toDiff;
 
-            real_t postDiff = (post - toRot) % Mathf.Tau;
-            real_t postRot = toRot + (2.0f * postDiff) % Mathf.Tau - postDiff;
+            float postDiff = (post - toRot) % MathF.Tau;
+            float postRot = toRot + (2.0f * postDiff) % MathF.Tau - postDiff;
 
             return CubicInterpolateInTime(fromRot, toRot, preRot, postRot, weight, toT, preT, postT);
         }
 
         /// <summary>
+        /// Cubic interpolates between two rotation values with shortest path
+        /// by the factor defined in <paramref name="weight"/> with pre and post values.
+        /// See also <see cref="LerpAngle(double, double, double)"/>.
+        /// It can perform smoother interpolation than
+        /// <see cref="CubicInterpolateAngle(double, double, double, double, double)"/>
+        /// by the time values.
+        /// </summary>
+        /// <param name="from">The start value for interpolation.</param>
+        /// <param name="to">The destination value for interpolation.</param>
+        /// <param name="pre">The value which before "from" value for interpolation.</param>
+        /// <param name="post">The value which after "to" value for interpolation.</param>
+        /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
+        /// <param name="toT"></param>
+        /// <param name="preT"></param>
+        /// <param name="postT"></param>
+        /// <returns>The resulting value of the interpolation.</returns>
+        public static double CubicInterpolateAngleInTime(double from, double to, double pre, double post, double weight, double toT, double preT, double postT)
+        {
+            double fromRot = from % Math.Tau;
+
+            double preDiff = (pre - fromRot) % Math.Tau;
+            double preRot = fromRot + (2.0 * preDiff) % Math.Tau - preDiff;
+
+            double toDiff = (to - fromRot) % Math.Tau;
+            double toRot = fromRot + (2.0 * toDiff) % Math.Tau - toDiff;
+
+            double postDiff = (post - toRot) % Math.Tau;
+            double postRot = toRot + (2.0 * postDiff) % Math.Tau - postDiff;
+
+            return CubicInterpolateInTime(fromRot, toRot, preRot, postRot, weight, toT, preT, postT);
+        }
+
+        /// <summary>
+        /// Returns the point at the given <paramref name="t"/> on a one-dimensional Bezier curve defined by
+        /// the given <paramref name="control1"/>, <paramref name="control2"/>, and <paramref name="end"/> points.
+        /// </summary>
+        /// <param name="start">The start value for the interpolation.</param>
+        /// <param name="control1">Control point that defines the bezier curve.</param>
+        /// <param name="control2">Control point that defines the bezier curve.</param>
+        /// <param name="end">The destination value for the interpolation.</param>
+        /// <param name="t">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
+        /// <returns>The resulting value of the interpolation.</returns>
+        public static float BezierInterpolate(float start, float control1, float control2, float end, float t)
+        {
+            // Formula from Wikipedia article on Bezier curves
+            float omt = 1.0f - t;
+            float omt2 = omt * omt;
+            float omt3 = omt2 * omt;
+            float t2 = t * t;
+            float t3 = t2 * t;
+
+            return start * omt3 + control1 * omt2 * t * 3.0f + control2 * omt * t2 * 3.0f + end * t3;
+        }
+
+        /// <summary>
         /// Returns the point at the given <paramref name="t"/> on a one-dimensional Bezier curve defined by
         /// the given <paramref name="control1"/>, <paramref name="control2"/>, and <paramref name="end"/> points.
         /// </summary>
@@ -290,16 +555,16 @@ namespace Godot
         /// <param name="end">The destination value for the interpolation.</param>
         /// <param name="t">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
         /// <returns>The resulting value of the interpolation.</returns>
-        public static real_t BezierInterpolate(real_t start, real_t control1, real_t control2, real_t end, real_t t)
+        public static double BezierInterpolate(double start, double control1, double control2, double end, double t)
         {
             // Formula from Wikipedia article on Bezier curves
-            real_t omt = 1 - t;
-            real_t omt2 = omt * omt;
-            real_t omt3 = omt2 * omt;
-            real_t t2 = t * t;
-            real_t t3 = t2 * t;
+            double omt = 1.0 - t;
+            double omt2 = omt * omt;
+            double omt3 = omt2 * omt;
+            double t2 = t * t;
+            double t3 = t2 * t;
 
-            return start * omt3 + control1 * omt2 * t * 3 + control2 * omt * t2 * 3 + end * t3;
+            return start * omt3 + control1 * omt2 * t * 3.0 + control2 * omt * t2 * 3.0 + end * t3;
         }
 
         /// <summary>
@@ -312,26 +577,68 @@ namespace Godot
         /// <param name="end">The destination value for the interpolation.</param>
         /// <param name="t">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
         /// <returns>The resulting value of the interpolation.</returns>
-        public static real_t BezierDerivative(real_t start, real_t control1, real_t control2, real_t end, real_t t)
+        public static float BezierDerivative(float start, float control1, float control2, float end, float t)
         {
             // Formula from Wikipedia article on Bezier curves
-            real_t omt = 1 - t;
-            real_t omt2 = omt * omt;
-            real_t t2 = t * t;
+            float omt = 1.0f - t;
+            float omt2 = omt * omt;
+            float t2 = t * t;
 
-            real_t d = (control1 - start) * 3 * omt2 + (control2 - control1) * 6 * omt * t + (end - control2) * 3 * t2;
+            float d = (control1 - start) * 3.0f * omt2 + (control2 - control1) * 6.0f * omt * t + (end - control2) * 3.0f * t2;
             return d;
         }
 
         /// <summary>
+        /// Returns the derivative at the given <paramref name="t"/> on a one dimensional Bezier curve defined by
+        /// the given <paramref name="control1"/>, <paramref name="control2"/>, and <paramref name="end"/> points.
+        /// </summary>
+        /// <param name="start">The start value for the interpolation.</param>
+        /// <param name="control1">Control point that defines the bezier curve.</param>
+        /// <param name="control2">Control point that defines the bezier curve.</param>
+        /// <param name="end">The destination value for the interpolation.</param>
+        /// <param name="t">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
+        /// <returns>The resulting value of the interpolation.</returns>
+        public static double BezierDerivative(double start, double control1, double control2, double end, double t)
+        {
+            // Formula from Wikipedia article on Bezier curves
+            double omt = 1.0 - t;
+            double omt2 = omt * omt;
+            double t2 = t * t;
+
+            double d = (control1 - start) * 3.0 * omt2 + (control2 - control1) * 6.0 * omt * t + (end - control2) * 3.0 * t2;
+            return d;
+        }
+
+        /// <summary>
+        /// Converts from decibels to linear energy (audio).
+        /// </summary>
+        /// <seealso cref="LinearToDb(float)"/>
+        /// <param name="db">Decibels to convert.</param>
+        /// <returns>Audio volume as linear energy.</returns>
+        public static float DbToLinear(float db)
+        {
+            return MathF.Exp(db * 0.11512925464970228420089957273422f);
+        }
+
+        /// <summary>
         /// Converts from decibels to linear energy (audio).
         /// </summary>
-        /// <seealso cref="LinearToDb(real_t)"/>
+        /// <seealso cref="LinearToDb(double)"/>
         /// <param name="db">Decibels to convert.</param>
         /// <returns>Audio volume as linear energy.</returns>
-        public static real_t DbToLinear(real_t db)
+        public static double DbToLinear(double db)
+        {
+            return Math.Exp(db * 0.11512925464970228420089957273422);
+        }
+
+        /// <summary>
+        /// Converts an angle expressed in degrees to radians.
+        /// </summary>
+        /// <param name="deg">An angle expressed in degrees.</param>
+        /// <returns>The same angle expressed in radians.</returns>
+        public static float DegToRad(float deg)
         {
-            return (real_t)Math.Exp(db * 0.11512925464970228420089957273422);
+            return deg * _degToRadConstF;
         }
 
         /// <summary>
@@ -339,9 +646,9 @@ namespace Godot
         /// </summary>
         /// <param name="deg">An angle expressed in degrees.</param>
         /// <returns>The same angle expressed in radians.</returns>
-        public static real_t DegToRad(real_t deg)
+        public static double DegToRad(double deg)
         {
-            return deg * _degToRadConst;
+            return deg * _degToRadConstD;
         }
 
         /// <summary>
@@ -354,38 +661,94 @@ namespace Godot
         /// <c>0</c> is constant, <c>1</c> is linear, <c>0</c> to <c>1</c> is ease-in, <c>1</c> or more is ease-out.
         /// </param>
         /// <returns>The eased value.</returns>
-        public static real_t Ease(real_t s, real_t curve)
+        public static float Ease(float s, float curve)
         {
-            if (s < 0f)
+            if (s < 0.0f)
             {
-                s = 0f;
+                s = 0.0f;
             }
             else if (s > 1.0f)
             {
                 s = 1.0f;
             }
 
-            if (curve > 0f)
+            if (curve > 0.0f)
             {
                 if (curve < 1.0f)
                 {
-                    return 1.0f - Pow(1.0f - s, 1.0f / curve);
+                    return 1.0f - MathF.Pow(1.0f - s, 1.0f / curve);
                 }
 
-                return Pow(s, curve);
+                return MathF.Pow(s, curve);
             }
 
-            if (curve < 0f)
+            if (curve < 0.0f)
             {
                 if (s < 0.5f)
                 {
-                    return Pow(s * 2.0f, -curve) * 0.5f;
+                    return MathF.Pow(s * 2.0f, -curve) * 0.5f;
                 }
 
-                return ((1.0f - Pow(1.0f - ((s - 0.5f) * 2.0f), -curve)) * 0.5f) + 0.5f;
+                return ((1.0f - MathF.Pow(1.0f - ((s - 0.5f) * 2.0f), -curve)) * 0.5f) + 0.5f;
             }
 
-            return 0f;
+            return 0.0f;
+        }
+
+        /// <summary>
+        /// Easing function, based on exponent. The <paramref name="curve"/> values are:
+        /// <c>0</c> is constant, <c>1</c> is linear, <c>0</c> to <c>1</c> is ease-in, <c>1</c> or more is ease-out.
+        /// Negative values are in-out/out-in.
+        /// </summary>
+        /// <param name="s">The value to ease.</param>
+        /// <param name="curve">
+        /// <c>0</c> is constant, <c>1</c> is linear, <c>0</c> to <c>1</c> is ease-in, <c>1</c> or more is ease-out.
+        /// </param>
+        /// <returns>The eased value.</returns>
+        public static double Ease(double s, double curve)
+        {
+            if (s < 0.0)
+            {
+                s = 0.0;
+            }
+            else if (s > 1.0)
+            {
+                s = 1.0;
+            }
+
+            if (curve > 0)
+            {
+                if (curve < 1.0)
+                {
+                    return 1.0 - Math.Pow(1.0 - s, 1.0 / curve);
+                }
+
+                return Math.Pow(s, curve);
+            }
+
+            if (curve < 0.0)
+            {
+                if (s < 0.5)
+                {
+                    return Math.Pow(s * 2.0, -curve) * 0.5;
+                }
+
+                return ((1.0 - Math.Pow(1.0 - ((s - 0.5) * 2.0), -curve)) * 0.5) + 0.5;
+            }
+
+            return 0.0;
+        }
+
+        /// <summary>
+        /// The natural exponential function. It raises the mathematical
+        /// constant <c>e</c> to the power of <paramref name="s"/> and returns it.
+        /// </summary>
+        /// <param name="s">The exponent to raise <c>e</c> to.</param>
+        /// <returns><c>e</c> raised to the power of <paramref name="s"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Exp(float s)
+        {
+            return MathF.Exp(s);
         }
 
         /// <summary>
@@ -394,9 +757,21 @@ namespace Godot
         /// </summary>
         /// <param name="s">The exponent to raise <c>e</c> to.</param>
         /// <returns><c>e</c> raised to the power of <paramref name="s"/>.</returns>
-        public static real_t Exp(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Exp(double s)
+        {
+            return Math.Exp(s);
+        }
+
+        /// <summary>
+        /// Rounds <paramref name="s"/> downward (towards negative infinity).
+        /// </summary>
+        /// <param name="s">The number to floor.</param>
+        /// <returns>The largest whole number that is not more than <paramref name="s"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Floor(float s)
         {
-            return (real_t)Math.Exp(s);
+            return MathF.Floor(s);
         }
 
         /// <summary>
@@ -404,14 +779,32 @@ namespace Godot
         /// </summary>
         /// <param name="s">The number to floor.</param>
         /// <returns>The largest whole number that is not more than <paramref name="s"/>.</returns>
-        public static real_t Floor(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Floor(double s)
+        {
+            return Math.Floor(s);
+        }
+
+        /// <summary>
+        /// Returns a normalized value considering the given range.
+        /// This is the opposite of <see cref="Lerp(float, float, float)"/>.
+        /// </summary>
+        /// <param name="from">The start value for interpolation.</param>
+        /// <param name="to">The destination value for interpolation.</param>
+        /// <param name="weight">The interpolated value.</param>
+        /// <returns>
+        /// The resulting value of the inverse interpolation.
+        /// The returned value will be between 0.0 and 1.0 if <paramref name="weight"/> is
+        /// between <paramref name="from"/> and <paramref name="to"/> (inclusive).
+        /// </returns>
+        public static float InverseLerp(float from, float to, float weight)
         {
-            return (real_t)Math.Floor(s);
+            return (weight - from) / (to - from);
         }
 
         /// <summary>
         /// Returns a normalized value considering the given range.
-        /// This is the opposite of <see cref="Lerp(real_t, real_t, real_t)"/>.
+        /// This is the opposite of <see cref="Lerp(double, double, double)"/>.
         /// </summary>
         /// <param name="from">The start value for interpolation.</param>
         /// <param name="to">The destination value for interpolation.</param>
@@ -421,7 +814,7 @@ namespace Godot
         /// The returned value will be between 0.0 and 1.0 if <paramref name="weight"/> is
         /// between <paramref name="from"/> and <paramref name="to"/> (inclusive).
         /// </returns>
-        public static real_t InverseLerp(real_t from, real_t to, real_t weight)
+        public static double InverseLerp(double from, double to, double weight)
         {
             return (weight - from) / (to - from);
         }
@@ -434,7 +827,7 @@ namespace Godot
         /// <param name="a">One of the values.</param>
         /// <param name="b">The other value.</param>
         /// <returns>A <see langword="bool"/> for whether or not the two values are approximately equal.</returns>
-        public static bool IsEqualApprox(real_t a, real_t b)
+        public static bool IsEqualApprox(float a, float b)
         {
             // Check for exact equality first, required to handle "infinity" values.
             if (a == b)
@@ -442,12 +835,36 @@ namespace Godot
                 return true;
             }
             // Then check for approximate equality.
-            real_t tolerance = Epsilon * Abs(a);
-            if (tolerance < Epsilon)
+            float tolerance = _epsilonF * Math.Abs(a);
+            if (tolerance < _epsilonF)
             {
-                tolerance = Epsilon;
+                tolerance = _epsilonF;
             }
-            return Abs(a - b) < tolerance;
+            return Math.Abs(a - b) < tolerance;
+        }
+
+        /// <summary>
+        /// Returns <see langword="true"/> if <paramref name="a"/> and <paramref name="b"/> are approximately equal
+        /// to each other.
+        /// The comparison is done using a tolerance calculation with <see cref="Epsilon"/>.
+        /// </summary>
+        /// <param name="a">One of the values.</param>
+        /// <param name="b">The other value.</param>
+        /// <returns>A <see langword="bool"/> for whether or not the two values are approximately equal.</returns>
+        public static bool IsEqualApprox(double a, double b)
+        {
+            // Check for exact equality first, required to handle "infinity" values.
+            if (a == b)
+            {
+                return true;
+            }
+            // Then check for approximate equality.
+            double tolerance = _epsilonD * Math.Abs(a);
+            if (tolerance < _epsilonD)
+            {
+                tolerance = _epsilonD;
+            }
+            return Math.Abs(a - b) < tolerance;
         }
 
         /// <summary>
@@ -456,9 +873,22 @@ namespace Godot
         /// </summary>
         /// <param name="s">The value to check.</param>
         /// <returns>A <see langword="bool"/> for whether or not the value is a finite value.</returns>
-        public static bool IsFinite(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool IsFinite(float s)
         {
-            return real_t.IsFinite(s);
+            return float.IsFinite(s);
+        }
+
+        /// <summary>
+        /// Returns whether <paramref name="s"/> is a finite value, i.e. it is not
+        /// <see cref="NaN"/>, positive infinite, or negative infinity.
+        /// </summary>
+        /// <param name="s">The value to check.</param>
+        /// <returns>A <see langword="bool"/> for whether or not the value is a finite value.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool IsFinite(double s)
+        {
+            return double.IsFinite(s);
         }
 
         /// <summary>
@@ -466,9 +896,32 @@ namespace Godot
         /// </summary>
         /// <param name="s">The value to check.</param>
         /// <returns>A <see langword="bool"/> for whether or not the value is an infinity value.</returns>
-        public static bool IsInf(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool IsInf(float s)
         {
-            return real_t.IsInfinity(s);
+            return float.IsInfinity(s);
+        }
+
+        /// <summary>
+        /// Returns whether <paramref name="s"/> is an infinity value (either positive infinity or negative infinity).
+        /// </summary>
+        /// <param name="s">The value to check.</param>
+        /// <returns>A <see langword="bool"/> for whether or not the value is an infinity value.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool IsInf(double s)
+        {
+            return double.IsInfinity(s);
+        }
+
+        /// <summary>
+        /// Returns whether <paramref name="s"/> is a <c>NaN</c> ("Not a Number" or invalid) value.
+        /// </summary>
+        /// <param name="s">The value to check.</param>
+        /// <returns>A <see langword="bool"/> for whether or not the value is a <c>NaN</c> value.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool IsNaN(float s)
+        {
+            return float.IsNaN(s);
         }
 
         /// <summary>
@@ -476,34 +929,64 @@ namespace Godot
         /// </summary>
         /// <param name="s">The value to check.</param>
         /// <returns>A <see langword="bool"/> for whether or not the value is a <c>NaN</c> value.</returns>
-        public static bool IsNaN(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool IsNaN(double s)
         {
-            return real_t.IsNaN(s);
+            return double.IsNaN(s);
         }
 
         /// <summary>
         /// Returns <see langword="true"/> if <paramref name="s"/> is zero or almost zero.
         /// The comparison is done using a tolerance calculation with <see cref="Epsilon"/>.
         ///
-        /// This method is faster than using <see cref="IsEqualApprox(real_t, real_t)"/> with
+        /// This method is faster than using <see cref="IsEqualApprox(float, float)"/> with
         /// one value as zero.
         /// </summary>
         /// <param name="s">The value to check.</param>
         /// <returns>A <see langword="bool"/> for whether or not the value is nearly zero.</returns>
-        public static bool IsZeroApprox(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool IsZeroApprox(float s)
         {
-            return Abs(s) < Epsilon;
+            return Math.Abs(s) < _epsilonF;
+        }
+
+        /// <summary>
+        /// Returns <see langword="true"/> if <paramref name="s"/> is zero or almost zero.
+        /// The comparison is done using a tolerance calculation with <see cref="Epsilon"/>.
+        ///
+        /// This method is faster than using <see cref="IsEqualApprox(double, double)"/> with
+        /// one value as zero.
+        /// </summary>
+        /// <param name="s">The value to check.</param>
+        /// <returns>A <see langword="bool"/> for whether or not the value is nearly zero.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool IsZeroApprox(double s)
+        {
+            return Math.Abs(s) < _epsilonD;
+        }
+
+        /// <summary>
+        /// Linearly interpolates between two values by a normalized value.
+        /// This is the opposite <see cref="InverseLerp(float, float, float)"/>.
+        /// </summary>
+        /// <param name="from">The start value for interpolation.</param>
+        /// <param name="to">The destination value for interpolation.</param>
+        /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
+        /// <returns>The resulting value of the interpolation.</returns>
+        public static float Lerp(float from, float to, float weight)
+        {
+            return from + ((to - from) * weight);
         }
 
         /// <summary>
         /// Linearly interpolates between two values by a normalized value.
-        /// This is the opposite <see cref="InverseLerp(real_t, real_t, real_t)"/>.
+        /// This is the opposite <see cref="InverseLerp(double, double, double)"/>.
         /// </summary>
         /// <param name="from">The start value for interpolation.</param>
         /// <param name="to">The destination value for interpolation.</param>
         /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
         /// <returns>The resulting value of the interpolation.</returns>
-        public static real_t Lerp(real_t from, real_t to, real_t weight)
+        public static double Lerp(double from, double to, double weight)
         {
             return from + ((to - from) * weight);
         }
@@ -511,17 +994,34 @@ namespace Godot
         /// <summary>
         /// Linearly interpolates between two angles (in radians) by a normalized value.
         ///
-        /// Similar to <see cref="Lerp(real_t, real_t, real_t)"/>,
+        /// Similar to <see cref="Lerp(float, float, float)"/>,
+        /// but interpolates correctly when the angles wrap around <see cref="Tau"/>.
+        /// </summary>
+        /// <param name="from">The start angle for interpolation.</param>
+        /// <param name="to">The destination angle for interpolation.</param>
+        /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
+        /// <returns>The resulting angle of the interpolation.</returns>
+        public static float LerpAngle(float from, float to, float weight)
+        {
+            float difference = (to - from) % MathF.Tau;
+            float distance = ((2 * difference) % MathF.Tau) - difference;
+            return from + (distance * weight);
+        }
+
+        /// <summary>
+        /// Linearly interpolates between two angles (in radians) by a normalized value.
+        ///
+        /// Similar to <see cref="Lerp(double, double, double)"/>,
         /// but interpolates correctly when the angles wrap around <see cref="Tau"/>.
         /// </summary>
         /// <param name="from">The start angle for interpolation.</param>
         /// <param name="to">The destination angle for interpolation.</param>
         /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
         /// <returns>The resulting angle of the interpolation.</returns>
-        public static real_t LerpAngle(real_t from, real_t to, real_t weight)
+        public static double LerpAngle(double from, double to, double weight)
         {
-            real_t difference = (to - from) % Mathf.Tau;
-            real_t distance = ((2 * difference) % Mathf.Tau) - difference;
+            double difference = (to - from) % Math.Tau;
+            double distance = ((2 * difference) % Math.Tau) - difference;
             return from + (distance * weight);
         }
 
@@ -529,7 +1029,7 @@ namespace Godot
         /// Converts from linear energy to decibels (audio).
         /// This can be used to implement volume sliders that behave as expected (since volume isn't linear).
         /// </summary>
-        /// <seealso cref="DbToLinear(real_t)"/>
+        /// <seealso cref="DbToLinear(float)"/>
         /// <example>
         /// <code>
         /// // "slider" refers to a node that inherits Range such as HSlider or VSlider.
@@ -540,9 +1040,42 @@ namespace Godot
         /// </example>
         /// <param name="linear">The linear energy to convert.</param>
         /// <returns>Audio as decibels.</returns>
-        public static real_t LinearToDb(real_t linear)
+        public static float LinearToDb(float linear)
         {
-            return (real_t)(Math.Log(linear) * 8.6858896380650365530225783783321);
+            return MathF.Log(linear) * 8.6858896380650365530225783783321f;
+        }
+
+        /// <summary>
+        /// Converts from linear energy to decibels (audio).
+        /// This can be used to implement volume sliders that behave as expected (since volume isn't linear).
+        /// </summary>
+        /// <seealso cref="DbToLinear(double)"/>
+        /// <example>
+        /// <code>
+        /// // "slider" refers to a node that inherits Range such as HSlider or VSlider.
+        /// // Its range must be configured to go from 0 to 1.
+        /// // Change the bus name if you'd like to change the volume of a specific bus only.
+        /// AudioServer.SetBusVolumeDb(AudioServer.GetBusIndex("Master"), GD.LinearToDb(slider.value));
+        /// </code>
+        /// </example>
+        /// <param name="linear">The linear energy to convert.</param>
+        /// <returns>Audio as decibels.</returns>
+        public static double LinearToDb(double linear)
+        {
+            return Math.Log(linear) * 8.6858896380650365530225783783321;
+        }
+
+        /// <summary>
+        /// Natural logarithm. The amount of time needed to reach a certain level of continuous growth.
+        ///
+        /// Note: This is not the same as the "log" function on most calculators, which uses a base 10 logarithm.
+        /// </summary>
+        /// <param name="s">The input value.</param>
+        /// <returns>The natural log of <paramref name="s"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Log(float s)
+        {
+            return MathF.Log(s);
         }
 
         /// <summary>
@@ -552,9 +1085,10 @@ namespace Godot
         /// </summary>
         /// <param name="s">The input value.</param>
         /// <returns>The natural log of <paramref name="s"/>.</returns>
-        public static real_t Log(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Log(double s)
         {
-            return (real_t)Math.Log(s);
+            return Math.Log(s);
         }
 
         /// <summary>
@@ -563,9 +1097,22 @@ namespace Godot
         /// <param name="a">One of the values.</param>
         /// <param name="b">The other value.</param>
         /// <returns>Whichever of the two values is higher.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static int Max(int a, int b)
         {
-            return a > b ? a : b;
+            return Math.Max(a, b);
+        }
+
+        /// <summary>
+        /// Returns the maximum of two values.
+        /// </summary>
+        /// <param name="a">One of the values.</param>
+        /// <param name="b">The other value.</param>
+        /// <returns>Whichever of the two values is higher.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Max(float a, float b)
+        {
+            return Math.Max(a, b);
         }
 
         /// <summary>
@@ -574,9 +1121,10 @@ namespace Godot
         /// <param name="a">One of the values.</param>
         /// <param name="b">The other value.</param>
         /// <returns>Whichever of the two values is higher.</returns>
-        public static real_t Max(real_t a, real_t b)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Max(double a, double b)
         {
-            return a > b ? a : b;
+            return Math.Max(a, b);
         }
 
         /// <summary>
@@ -585,9 +1133,22 @@ namespace Godot
         /// <param name="a">One of the values.</param>
         /// <param name="b">The other value.</param>
         /// <returns>Whichever of the two values is lower.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static int Min(int a, int b)
         {
-            return a < b ? a : b;
+            return Math.Min(a, b);
+        }
+
+        /// <summary>
+        /// Returns the minimum of two values.
+        /// </summary>
+        /// <param name="a">One of the values.</param>
+        /// <param name="b">The other value.</param>
+        /// <returns>Whichever of the two values is lower.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Min(float a, float b)
+        {
+            return Math.Min(a, b);
         }
 
         /// <summary>
@@ -596,9 +1157,27 @@ namespace Godot
         /// <param name="a">One of the values.</param>
         /// <param name="b">The other value.</param>
         /// <returns>Whichever of the two values is lower.</returns>
-        public static real_t Min(real_t a, real_t b)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Min(double a, double b)
+        {
+            return Math.Min(a, b);
+        }
+
+        /// <summary>
+        /// Moves <paramref name="from"/> toward <paramref name="to"/> by the <paramref name="delta"/> value.
+        ///
+        /// Use a negative <paramref name="delta"/> value to move away.
+        /// </summary>
+        /// <param name="from">The start value.</param>
+        /// <param name="to">The value to move towards.</param>
+        /// <param name="delta">The amount to move by.</param>
+        /// <returns>The value after moving.</returns>
+        public static float MoveToward(float from, float to, float delta)
         {
-            return a < b ? a : b;
+            if (Math.Abs(to - from) <= delta)
+                return to;
+
+            return from + (Math.Sign(to - from) * delta);
         }
 
         /// <summary>
@@ -610,12 +1189,12 @@ namespace Godot
         /// <param name="to">The value to move towards.</param>
         /// <param name="delta">The amount to move by.</param>
         /// <returns>The value after moving.</returns>
-        public static real_t MoveToward(real_t from, real_t to, real_t delta)
+        public static double MoveToward(double from, double to, double delta)
         {
-            if (Abs(to - from) <= delta)
+            if (Math.Abs(to - from) <= delta)
                 return to;
 
-            return from + (Sign(to - from) * delta);
+            return from + (Math.Sign(to - from) * delta);
         }
 
         /// <summary>
@@ -657,9 +1236,25 @@ namespace Godot
         /// <param name="a">The dividend, the primary input.</param>
         /// <param name="b">The divisor. The output is on the range [0, <paramref name="b"/>).</param>
         /// <returns>The resulting output.</returns>
-        public static real_t PosMod(real_t a, real_t b)
+        public static float PosMod(float a, float b)
+        {
+            float c = a % b;
+            if ((c < 0 && b > 0) || (c > 0 && b < 0))
+            {
+                c += b;
+            }
+            return c;
+        }
+
+        /// <summary>
+        /// Performs a canonical Modulus operation, where the output is on the range [0, <paramref name="b"/>).
+        /// </summary>
+        /// <param name="a">The dividend, the primary input.</param>
+        /// <param name="b">The divisor. The output is on the range [0, <paramref name="b"/>).</param>
+        /// <returns>The resulting output.</returns>
+        public static double PosMod(double a, double b)
         {
-            real_t c = a % b;
+            double c = a % b;
             if ((c < 0 && b > 0) || (c > 0 && b < 0))
             {
                 c += b;
@@ -673,9 +1268,22 @@ namespace Godot
         /// <param name="x">The base.</param>
         /// <param name="y">The exponent.</param>
         /// <returns><paramref name="x"/> raised to the power of <paramref name="y"/>.</returns>
-        public static real_t Pow(real_t x, real_t y)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Pow(float x, float y)
+        {
+            return MathF.Pow(x, y);
+        }
+
+        /// <summary>
+        /// Returns the result of <paramref name="x"/> raised to the power of <paramref name="y"/>.
+        /// </summary>
+        /// <param name="x">The base.</param>
+        /// <param name="y">The exponent.</param>
+        /// <returns><paramref name="x"/> raised to the power of <paramref name="y"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Pow(double x, double y)
         {
-            return (real_t)Math.Pow(x, y);
+            return Math.Pow(x, y);
         }
 
         /// <summary>
@@ -683,9 +1291,21 @@ namespace Godot
         /// </summary>
         /// <param name="rad">An angle expressed in radians.</param>
         /// <returns>The same angle expressed in degrees.</returns>
-        public static real_t RadToDeg(real_t rad)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float RadToDeg(float rad)
         {
-            return rad * _radToDegConst;
+            return rad * _radToDegConstF;
+        }
+
+        /// <summary>
+        /// Converts an angle expressed in radians to degrees.
+        /// </summary>
+        /// <param name="rad">An angle expressed in radians.</param>
+        /// <returns>The same angle expressed in degrees.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double RadToDeg(double rad)
+        {
+            return rad * _radToDegConstD;
         }
 
         /// <summary>
@@ -698,20 +1318,48 @@ namespace Godot
         /// <param name="outFrom">The start value for the output interpolation.</param>
         /// <param name="outTo">The destination value for the output interpolation.</param>
         /// <returns>The resulting mapped value mapped.</returns>
-        public static real_t Remap(real_t value, real_t inFrom, real_t inTo, real_t outFrom, real_t outTo)
+        public static float Remap(float value, float inFrom, float inTo, float outFrom, float outTo)
         {
             return Lerp(outFrom, outTo, InverseLerp(inFrom, inTo, value));
         }
 
         /// <summary>
+        /// Maps a <paramref name="value"/> from [<paramref name="inFrom"/>, <paramref name="inTo"/>]
+        /// to [<paramref name="outFrom"/>, <paramref name="outTo"/>].
+        /// </summary>
+        /// <param name="value">The value to map.</param>
+        /// <param name="inFrom">The start value for the input interpolation.</param>
+        /// <param name="inTo">The destination value for the input interpolation.</param>
+        /// <param name="outFrom">The start value for the output interpolation.</param>
+        /// <param name="outTo">The destination value for the output interpolation.</param>
+        /// <returns>The resulting mapped value mapped.</returns>
+        public static double Remap(double value, double inFrom, double inTo, double outFrom, double outTo)
+        {
+            return Lerp(outFrom, outTo, InverseLerp(inFrom, inTo, value));
+        }
+
+        /// <summary>
+        /// Rounds <paramref name="s"/> to the nearest whole number,
+        /// with halfway cases rounded towards the nearest multiple of two.
+        /// </summary>
+        /// <param name="s">The number to round.</param>
+        /// <returns>The rounded number.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Round(float s)
+        {
+            return MathF.Round(s);
+        }
+
+        /// <summary>
         /// Rounds <paramref name="s"/> to the nearest whole number,
         /// with halfway cases rounded towards the nearest multiple of two.
         /// </summary>
         /// <param name="s">The number to round.</param>
         /// <returns>The rounded number.</returns>
-        public static real_t Round(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Round(double s)
         {
-            return (real_t)Math.Round(s);
+            return Math.Round(s);
         }
 
         /// <summary>
@@ -720,11 +1368,10 @@ namespace Godot
         /// </summary>
         /// <param name="s">The input number.</param>
         /// <returns>One of three possible values: <c>1</c>, <c>-1</c>, or <c>0</c>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static int Sign(int s)
         {
-            if (s == 0)
-                return 0;
-            return s < 0 ? -1 : 1;
+            return Math.Sign(s);
         }
 
         /// <summary>
@@ -733,11 +1380,33 @@ namespace Godot
         /// </summary>
         /// <param name="s">The input number.</param>
         /// <returns>One of three possible values: <c>1</c>, <c>-1</c>, or <c>0</c>.</returns>
-        public static int Sign(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int Sign(float s)
         {
-            if (s == 0)
-                return 0;
-            return s < 0 ? -1 : 1;
+            return Math.Sign(s);
+        }
+
+        /// <summary>
+        /// Returns the sign of <paramref name="s"/>: <c>-1</c> or <c>1</c>.
+        /// Returns <c>0</c> if <paramref name="s"/> is <c>0</c>.
+        /// </summary>
+        /// <param name="s">The input number.</param>
+        /// <returns>One of three possible values: <c>1</c>, <c>-1</c>, or <c>0</c>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int Sign(double s)
+        {
+            return Math.Sign(s);
+        }
+
+        /// <summary>
+        /// Returns the sine of angle <paramref name="s"/> in radians.
+        /// </summary>
+        /// <param name="s">The angle in radians.</param>
+        /// <returns>The sine of that angle.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Sin(float s)
+        {
+            return MathF.Sin(s);
         }
 
         /// <summary>
@@ -745,9 +1414,21 @@ namespace Godot
         /// </summary>
         /// <param name="s">The angle in radians.</param>
         /// <returns>The sine of that angle.</returns>
-        public static real_t Sin(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Sin(double s)
+        {
+            return Math.Sin(s);
+        }
+
+        /// <summary>
+        /// Returns the hyperbolic sine of angle <paramref name="s"/> in radians.
+        /// </summary>
+        /// <param name="s">The angle in radians.</param>
+        /// <returns>The hyperbolic sine of that angle.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Sinh(float s)
         {
-            return (real_t)Math.Sin(s);
+            return MathF.Sinh(s);
         }
 
         /// <summary>
@@ -755,27 +1436,47 @@ namespace Godot
         /// </summary>
         /// <param name="s">The angle in radians.</param>
         /// <returns>The hyperbolic sine of that angle.</returns>
-        public static real_t Sinh(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Sinh(double s)
+        {
+            return Math.Sinh(s);
+        }
+
+        /// <summary>
+        /// Returns a number smoothly interpolated between <paramref name="from"/> and <paramref name="to"/>,
+        /// based on the <paramref name="weight"/>. Similar to <see cref="Lerp(float, float, float)"/>,
+        /// but interpolates faster at the beginning and slower at the end.
+        /// </summary>
+        /// <param name="from">The start value for interpolation.</param>
+        /// <param name="to">The destination value for interpolation.</param>
+        /// <param name="weight">A value representing the amount of interpolation.</param>
+        /// <returns>The resulting value of the interpolation.</returns>
+        public static float SmoothStep(float from, float to, float weight)
         {
-            return (real_t)Math.Sinh(s);
+            if (IsEqualApprox(from, to))
+            {
+                return from;
+            }
+            float x = Math.Clamp((weight - from) / (to - from), 0.0f, 1.0f);
+            return x * x * (3 - (2 * x));
         }
 
         /// <summary>
         /// Returns a number smoothly interpolated between <paramref name="from"/> and <paramref name="to"/>,
-        /// based on the <paramref name="weight"/>. Similar to <see cref="Lerp(real_t, real_t, real_t)"/>,
+        /// based on the <paramref name="weight"/>. Similar to <see cref="Lerp(double, double, double)"/>,
         /// but interpolates faster at the beginning and slower at the end.
         /// </summary>
         /// <param name="from">The start value for interpolation.</param>
         /// <param name="to">The destination value for interpolation.</param>
         /// <param name="weight">A value representing the amount of interpolation.</param>
         /// <returns>The resulting value of the interpolation.</returns>
-        public static real_t SmoothStep(real_t from, real_t to, real_t weight)
+        public static double SmoothStep(double from, double to, double weight)
         {
             if (IsEqualApprox(from, to))
             {
                 return from;
             }
-            real_t x = Clamp((weight - from) / (to - from), (real_t)0.0, (real_t)1.0);
+            double x = Math.Clamp((weight - from) / (to - from), 0.0, 1.0);
             return x * x * (3 - (2 * x));
         }
 
@@ -786,9 +1487,23 @@ namespace Godot
         /// </summary>
         /// <param name="s">The input number. Must not be negative.</param>
         /// <returns>The square root of <paramref name="s"/>.</returns>
-        public static real_t Sqrt(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Sqrt(float s)
         {
-            return (real_t)Math.Sqrt(s);
+            return MathF.Sqrt(s);
+        }
+
+        /// <summary>
+        /// Returns the square root of <paramref name="s"/>, where <paramref name="s"/> is a non-negative number.
+        ///
+        /// If you need negative inputs, use <see cref="System.Numerics.Complex"/>.
+        /// </summary>
+        /// <param name="s">The input number. Must not be negative.</param>
+        /// <returns>The square root of <paramref name="s"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Sqrt(double s)
+        {
+            return Math.Sqrt(s);
         }
 
         /// <summary>
@@ -798,7 +1513,7 @@ namespace Godot
         /// </summary>
         /// <param name="step">The input value.</param>
         /// <returns>The position of the first non-zero digit.</returns>
-        public static int StepDecimals(real_t step)
+        public static int StepDecimals(double step)
         {
             double[] sd = new double[]
             {
@@ -812,7 +1527,7 @@ namespace Godot
                 0.00000009999,
                 0.000000009999,
             };
-            double abs = Abs(step);
+            double abs = Math.Abs(step);
             double decs = abs - (int)abs; // Strip away integer part
             for (int i = 0; i < sd.Length; i++)
             {
@@ -831,11 +1546,28 @@ namespace Godot
         /// <param name="s">The value to snap.</param>
         /// <param name="step">The step size to snap to.</param>
         /// <returns>The snapped value.</returns>
-        public static real_t Snapped(real_t s, real_t step)
+        public static float Snapped(float s, float step)
+        {
+            if (step != 0f)
+            {
+                return MathF.Floor((s / step) + 0.5f) * step;
+            }
+
+            return s;
+        }
+
+        /// <summary>
+        /// Snaps float value <paramref name="s"/> to a given <paramref name="step"/>.
+        /// This can also be used to round a floating point number to an arbitrary number of decimals.
+        /// </summary>
+        /// <param name="s">The value to snap.</param>
+        /// <param name="step">The step size to snap to.</param>
+        /// <returns>The snapped value.</returns>
+        public static double Snapped(double s, double step)
         {
             if (step != 0f)
             {
-                return Floor((s / step) + 0.5f) * step;
+                return Math.Floor((s / step) + 0.5f) * step;
             }
 
             return s;
@@ -846,9 +1578,32 @@ namespace Godot
         /// </summary>
         /// <param name="s">The angle in radians.</param>
         /// <returns>The tangent of that angle.</returns>
-        public static real_t Tan(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Tan(float s)
+        {
+            return MathF.Tan(s);
+        }
+
+        /// <summary>
+        /// Returns the tangent of angle <paramref name="s"/> in radians.
+        /// </summary>
+        /// <param name="s">The angle in radians.</param>
+        /// <returns>The tangent of that angle.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Tan(double s)
+        {
+            return Math.Tan(s);
+        }
+
+        /// <summary>
+        /// Returns the hyperbolic tangent of angle <paramref name="s"/> in radians.
+        /// </summary>
+        /// <param name="s">The angle in radians.</param>
+        /// <returns>The hyperbolic tangent of that angle.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static float Tanh(float s)
         {
-            return (real_t)Math.Tan(s);
+            return MathF.Tanh(s);
         }
 
         /// <summary>
@@ -856,9 +1611,10 @@ namespace Godot
         /// </summary>
         /// <param name="s">The angle in radians.</param>
         /// <returns>The hyperbolic tangent of that angle.</returns>
-        public static real_t Tanh(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static double Tanh(double s)
         {
-            return (real_t)Math.Tanh(s);
+            return Math.Tanh(s);
         }
 
         /// <summary>
@@ -884,15 +1640,35 @@ namespace Godot
         /// Wraps <paramref name="value"/> between <paramref name="min"/> and <paramref name="max"/>.
         /// Usable for creating loop-alike behavior or infinite surfaces.
         /// If <paramref name="min"/> is <c>0</c>, this is equivalent
-        /// to <see cref="PosMod(real_t, real_t)"/>, so prefer using that instead.
+        /// to <see cref="PosMod(float, float)"/>, so prefer using that instead.
+        /// </summary>
+        /// <param name="value">The value to wrap.</param>
+        /// <param name="min">The minimum allowed value and lower bound of the range.</param>
+        /// <param name="max">The maximum allowed value and upper bound of the range.</param>
+        /// <returns>The wrapped value.</returns>
+        public static float Wrap(float value, float min, float max)
+        {
+            float range = max - min;
+            if (IsZeroApprox(range))
+            {
+                return min;
+            }
+            return min + ((((value - min) % range) + range) % range);
+        }
+
+        /// <summary>
+        /// Wraps <paramref name="value"/> between <paramref name="min"/> and <paramref name="max"/>.
+        /// Usable for creating loop-alike behavior or infinite surfaces.
+        /// If <paramref name="min"/> is <c>0</c>, this is equivalent
+        /// to <see cref="PosMod(double, double)"/>, so prefer using that instead.
         /// </summary>
         /// <param name="value">The value to wrap.</param>
         /// <param name="min">The minimum allowed value and lower bound of the range.</param>
         /// <param name="max">The maximum allowed value and upper bound of the range.</param>
         /// <returns>The wrapped value.</returns>
-        public static real_t Wrap(real_t value, real_t min, real_t max)
+        public static double Wrap(double value, double min, double max)
         {
-            real_t range = max - min;
+            double range = max - min;
             if (IsZeroApprox(range))
             {
                 return min;
@@ -900,9 +1676,23 @@ namespace Godot
             return min + ((((value - min) % range) + range) % range);
         }
 
-        private static real_t Fract(real_t value)
+        /// <summary>
+        /// Returns the <paramref name="value"/> wrapped between <c>0</c> and the <paramref name="length"/>.
+        /// If the limit is reached, the next value the function returned is decreased to the <c>0</c> side
+        /// or increased to the <paramref name="length"/> side (like a triangle wave).
+        /// If <paramref name="length"/> is less than zero, it becomes positive.
+        /// </summary>
+        /// <param name="value">The value to pingpong.</param>
+        /// <param name="length">The maximum value of the function.</param>
+        /// <returns>The ping-ponged value.</returns>
+        public static float PingPong(float value, float length)
         {
-            return value - (real_t)Math.Floor(value);
+            return (length != 0.0f) ? Math.Abs(Fract((value - length) / (length * 2.0f)) * length * 2.0f - length) : 0.0f;
+
+            static float Fract(float value)
+            {
+                return value - MathF.Floor(value);
+            }
         }
 
         /// <summary>
@@ -914,9 +1704,14 @@ namespace Godot
         /// <param name="value">The value to pingpong.</param>
         /// <param name="length">The maximum value of the function.</param>
         /// <returns>The ping-ponged value.</returns>
-        public static real_t PingPong(real_t value, real_t length)
+        public static double PingPong(double value, double length)
         {
-            return (length != (real_t)0.0) ? Abs(Fract((value - length) / (length * (real_t)2.0)) * length * (real_t)2.0 - length) : (real_t)0.0;
+            return (length != 0.0) ? Math.Abs(Fract((value - length) / (length * 2.0)) * length * 2.0 - length) : 0.0;
+
+            static double Fract(double value)
+            {
+                return value - Math.Floor(value);
+            }
         }
     }
 }
diff --git a/modules/mono/glue/GodotSharp/GodotSharp/Core/MathfEx.cs b/modules/mono/glue/GodotSharp/GodotSharp/Core/MathfEx.cs
index 72a1868964..cc2d61f58d 100644
--- a/modules/mono/glue/GodotSharp/GodotSharp/Core/MathfEx.cs
+++ b/modules/mono/glue/GodotSharp/GodotSharp/Core/MathfEx.cs
@@ -1,4 +1,8 @@
 using System;
+using System.Runtime.CompilerServices;
+
+// This file contains extra members for the Mathf class that aren't part of Godot's Core API.
+// Math API that is also part of Core should go into Mathf.cs.
 
 namespace Godot
 {
@@ -16,14 +20,18 @@ namespace Godot
         /// </summary>
         public const real_t Sqrt2 = (real_t)1.4142135623730950488016887242M; // 1.4142136f and 1.414213562373095
 
+        // Epsilon size should depend on the precision used.
+        private const float _epsilonF = 1e-06f;
+        private const double _epsilonD = 1e-14;
+
         /// <summary>
         /// A very small number used for float comparison with error tolerance.
         /// 1e-06 with single-precision floats, but 1e-14 if <c>REAL_T_IS_DOUBLE</c>.
         /// </summary>
 #if REAL_T_IS_DOUBLE
-        public const real_t Epsilon = 1e-14; // Epsilon size should depend on the precision used.
+        public const real_t Epsilon = _epsilonD;
 #else
-        public const real_t Epsilon = 1e-06f;
+        public const real_t Epsilon = _epsilonF;
 #endif
 
         /// <summary>
@@ -31,7 +39,8 @@ namespace Godot
         /// </summary>
         /// <param name="s">The input value.</param>
         /// <returns>The amount of digits.</returns>
-        public static int DecimalCount(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int DecimalCount(double s)
         {
             return DecimalCount((decimal)s);
         }
@@ -41,6 +50,7 @@ namespace Godot
         /// </summary>
         /// <param name="s">The input <see langword="decimal"/> value.</param>
         /// <returns>The amount of digits.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static int DecimalCount(decimal s)
         {
             return BitConverter.GetBytes(decimal.GetBits(s)[3])[2];
@@ -49,11 +59,25 @@ namespace Godot
         /// <summary>
         /// Rounds <paramref name="s"/> upward (towards positive infinity).
         ///
-        /// This is the same as <see cref="Ceil(real_t)"/>, but returns an <see langword="int"/>.
+        /// This is the same as <see cref="Ceil(float)"/>, but returns an <see langword="int"/>.
+        /// </summary>
+        /// <param name="s">The number to ceil.</param>
+        /// <returns>The smallest whole number that is not less than <paramref name="s"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int CeilToInt(float s)
+        {
+            return (int)MathF.Ceiling(s);
+        }
+
+        /// <summary>
+        /// Rounds <paramref name="s"/> upward (towards positive infinity).
+        ///
+        /// This is the same as <see cref="Ceil(double)"/>, but returns an <see langword="int"/>.
         /// </summary>
         /// <param name="s">The number to ceil.</param>
         /// <returns>The smallest whole number that is not less than <paramref name="s"/>.</returns>
-        public static int CeilToInt(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int CeilToInt(double s)
         {
             return (int)Math.Ceiling(s);
         }
@@ -61,11 +85,25 @@ namespace Godot
         /// <summary>
         /// Rounds <paramref name="s"/> downward (towards negative infinity).
         ///
-        /// This is the same as <see cref="Floor(real_t)"/>, but returns an <see langword="int"/>.
+        /// This is the same as <see cref="Floor(float)"/>, but returns an <see langword="int"/>.
+        /// </summary>
+        /// <param name="s">The number to floor.</param>
+        /// <returns>The largest whole number that is not more than <paramref name="s"/>.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int FloorToInt(float s)
+        {
+            return (int)MathF.Floor(s);
+        }
+
+        /// <summary>
+        /// Rounds <paramref name="s"/> downward (towards negative infinity).
+        ///
+        /// This is the same as <see cref="Floor(double)"/>, but returns an <see langword="int"/>.
         /// </summary>
         /// <param name="s">The number to floor.</param>
         /// <returns>The largest whole number that is not more than <paramref name="s"/>.</returns>
-        public static int FloorToInt(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int FloorToInt(double s)
         {
             return (int)Math.Floor(s);
         }
@@ -73,11 +111,25 @@ namespace Godot
         /// <summary>
         /// Rounds <paramref name="s"/> to the nearest whole number.
         ///
-        /// This is the same as <see cref="Round(real_t)"/>, but returns an <see langword="int"/>.
+        /// This is the same as <see cref="Round(float)"/>, but returns an <see langword="int"/>.
         /// </summary>
         /// <param name="s">The number to round.</param>
         /// <returns>The rounded number.</returns>
-        public static int RoundToInt(real_t s)
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int RoundToInt(float s)
+        {
+            return (int)MathF.Round(s);
+        }
+
+        /// <summary>
+        /// Rounds <paramref name="s"/> to the nearest whole number.
+        ///
+        /// This is the same as <see cref="Round(double)"/>, but returns an <see langword="int"/>.
+        /// </summary>
+        /// <param name="s">The number to round.</param>
+        /// <returns>The rounded number.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int RoundToInt(double s)
         {
             return (int)Math.Round(s);
         }
@@ -87,23 +139,53 @@ namespace Godot
         /// </summary>
         /// <param name="s">The angle in radians.</param>
         /// <returns>The sine and cosine of that angle.</returns>
-        public static (real_t Sin, real_t Cos) SinCos(real_t s)
+        public static (float Sin, float Cos) SinCos(float s)
+        {
+            return MathF.SinCos(s);
+        }
+
+        /// <summary>
+        /// Returns the sine and cosine of angle <paramref name="s"/> in radians.
+        /// </summary>
+        /// <param name="s">The angle in radians.</param>
+        /// <returns>The sine and cosine of that angle.</returns>
+        public static (double Sin, double Cos) SinCos(double s)
         {
-            (double sin, double cos) = Math.SinCos(s);
-            return ((real_t)sin, (real_t)cos);
+            return Math.SinCos(s);
+        }
+
+        /// <summary>
+        /// Returns <see langword="true"/> if <paramref name="a"/> and <paramref name="b"/> are approximately
+        /// equal to each other.
+        /// The comparison is done using the provided tolerance value.
+        /// If you want the tolerance to be calculated for you, use <see cref="IsEqualApprox(float, float)"/>.
+        /// </summary>
+        /// <param name="a">One of the values.</param>
+        /// <param name="b">The other value.</param>
+        /// <param name="tolerance">The pre-calculated tolerance value.</param>
+        /// <returns>A <see langword="bool"/> for whether or not the two values are equal.</returns>
+        public static bool IsEqualApprox(float a, float b, float tolerance)
+        {
+            // Check for exact equality first, required to handle "infinity" values.
+            if (a == b)
+            {
+                return true;
+            }
+            // Then check for approximate equality.
+            return Math.Abs(a - b) < tolerance;
         }
 
         /// <summary>
         /// Returns <see langword="true"/> if <paramref name="a"/> and <paramref name="b"/> are approximately
         /// equal to each other.
         /// The comparison is done using the provided tolerance value.
-        /// If you want the tolerance to be calculated for you, use <see cref="IsEqualApprox(real_t, real_t)"/>.
+        /// If you want the tolerance to be calculated for you, use <see cref="IsEqualApprox(double, double)"/>.
         /// </summary>
         /// <param name="a">One of the values.</param>
         /// <param name="b">The other value.</param>
         /// <param name="tolerance">The pre-calculated tolerance value.</param>
         /// <returns>A <see langword="bool"/> for whether or not the two values are equal.</returns>
-        public static bool IsEqualApprox(real_t a, real_t b, real_t tolerance)
+        public static bool IsEqualApprox(double a, double b, double tolerance)
         {
             // Check for exact equality first, required to handle "infinity" values.
             if (a == b)
@@ -111,7 +193,7 @@ namespace Godot
                 return true;
             }
             // Then check for approximate equality.
-            return Abs(a - b) < tolerance;
+            return Math.Abs(a - b) < tolerance;
         }
     }
 }