public static float Acos(float Angle)
{
return(1.5707963267948966192313216916398f - FastMathF.Asin(Angle)); //(PI / 2)
}
public static float Log2(float x)
{
return(FastMathF.Log(x) / 0.69314718055994530941723212145818f);
}
public static float Log(float x, float newbase)
{
Debug.Assert(x != 0.0f);
return(FastMathF.Log(x) / FastMathF.Log(newbase));
}
public static float Exp2(float x)
{
return(FastMathF.Exp(0.69314718055994530941723212145818f * x));
}
public static float FastSqrt(float x)
{
return(1.0f / FastMathF.InverseSqrt(x));
//return 1.0f / FastInverseSqrt(x);
}