Intel® C++ Compiler Classic Developer Guide and Reference

ID 767249
Date 12/16/2022
Public

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<span class='option'> _mm_atan_ps</span>, <span class='option'>_mm256_atan_ps</span>

Calculates inverse tangent value. Vector variant of atan(x) function for a 128-bit/256-bit vector argument of float32 values.

Syntax

extern __m128 _mm_atan_ps(__m128 v1);

extern __m256 _mm256_atan_ps(__m256 v1);

Arguments

v1

vector with float32 values

Description

Calculates the arc tangent of vector v1 elements. In effect, the tangent of each resulting element value is the value of the corresponding v1 vector element.

Returns

128-bit/256-bit vector with result of the operation.

NOTE:

Many routines in the Short Vector Math Library (SVML) are more optimized for Intel® microprocessors than for non-Intel microprocessors.