_mm_erf_ps

Calculates error function. Vector variant of erf(x) function for a 128-bit vector argument of four float32 values.

Syntax

extern __m128 __cdecl _mm_erf_ps(__m128 v1);

Arguments

v1

128-bit vector with float32 values

Description

Calculates error function of v1 elements, which is defined as:

erf(x) = 2/sqrt(pi)* integral from 0 to x of exp(-t*t) dt

Returns

128-bit vector with the result of the operation.