Function directx_math::XMScalarSinCosEst

pub fn XMScalarSinCosEst(pSin: &mut f32, pCos: &mut f32, Value: f32)

Estimates both the sine and cosine of a radian angle.

Parameters

pSin Address of a float that will contain the result of the sine of Value.

pCos Address of a float that will contain the result of the cosine of Value.

Value float value describing the radian angle.

Return value

None

Remarks

Est functions offer increased performance at the expense of reduced accuracy. Est functions are appropriate for non-critical calculations where accuracy can be sacrificed for speed. The exact amount of lost accuracy and speed increase are platform dependent.

This function uses a 7-degree minimax approximation for sine; 6-degree for cosine.

Reference

https://docs.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-XMScalarSinCosEst