Merge pull request opentk#1675 from MV10/use_MathF_methods

Use MathF methods instead of Math (float vs double)

Author: NogginBops

src/OpenTK.Mathematics/Geometry/BezierCurve.cs

@@ -203,16 +203,16 @@ public static Vector2 CalculatePoint(IList<Vector2> points, float t)
         [Pure]
         public static Vector2 CalculatePoint(IList<Vector2> points, float t, float parallel)
         {
-            var r = default(Vector2);
-            var c = 1.0d - t;
+            Vector2 r = default(Vector2);
+            float c = 1 - t;
             float temp;
-            var i = 0;
+            int i = 0;
 
             foreach (var pt in points)
             {
                 temp = MathHelper.BinomialCoefficient
                 (
-                    points.Count - 1, i) * (float)(Math.Pow(t, i) * Math.Pow(c, points.Count - 1 - i)
+                    points.Count - 1, i) * (MathF.Pow(t, i) * MathF.Pow(c, points.Count - 1 - i)
                 );
 
                 r.X += temp * pt.X;
@@ -248,16 +248,16 @@ public static Vector2 CalculatePoint(IList<Vector2> points, float t, float paral
         [Pure]
         private static Vector2 CalculatePointOfDerivative(IList<Vector2> points, float t)
         {
-            var r = default(Vector2);
-            var c = 1.0d - t;
+            Vector2 r = default(Vector2);
+            float c = 1 - t;
             float temp;
-            var i = 0;
+            int i = 0;
 
             foreach (var pt in points)
             {
                 temp = MathHelper.BinomialCoefficient
                 (
-                    points.Count - 2, i) * (float)(Math.Pow(t, i) * Math.Pow(c, points.Count - 2 - i)
+                    points.Count - 2, i) * (MathF.Pow(t, i) * MathF.Pow(c, points.Count - 2 - i)
                 );
 
                 r.X += temp * pt.X;

src/OpenTK.Mathematics/Matrix/Matrix4.cs

@@ -1117,7 +1117,7 @@ public static void CreatePerspectiveFieldOfView
             out Matrix4 result
         )
         {
-            if (fovy <= 0 || fovy > Math.PI)
+            if (fovy <= 0 || fovy > MathF.PI)
             {
                 throw new ArgumentOutOfRangeException(nameof(fovy));
             }
@@ -1137,10 +1137,10 @@ out Matrix4 result
                 throw new ArgumentOutOfRangeException(nameof(depthFar));
             }
 
-            var maxY = depthNear * MathF.Tan(0.5f * fovy);
-            var minY = -maxY;
-            var minX = minY * aspect;
-            var maxX = maxY * aspect;
+            float maxY = depthNear * MathF.Tan(0.5f * fovy);
+            float minY = -maxY;
+            float minX = minY * aspect;
+            float maxX = maxY * aspect;
 
             CreatePerspectiveOffCenter(minX, maxX, minY, maxY, depthNear, depthFar, out result);
         }