Intel® C++ Compiler Classic Developer Guide and Reference

ID 767249
Date 7/13/2023
Public
Document Table of Contents

_mm_acos_pd, _mm256_acos_pd

Calculates inverse cosine value. Vector variant of acos(x) function for a 128-bit/256-bit vector argument of float64 values.

Syntax

extern __m128d _mm_acos_pd(__m128d v1);

extern __m256d _mm256_acos_pd(__m256d v1);

Arguments

v1

vector with float64 values

Description

Calculates the arc cosine of vector v1 elements.

Returns

128-bit/256-bit vector with the 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.