Function directx_math::XMVectorATanEst [−][src]
pub fn XMVectorATanEst(V: FXMVECTOR) -> FXMVECTOR
Estimates the arctangent of each component of an XMVECTOR.
Parameters
V Vector for which to compute the arctangent.
Return value
Returns a vector whose components are estimates of the arctangent of the corresponding components of V.
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 9-degree minimax approximation.
Reference
https://docs.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-XMVectorATanEst