acosf4

NAME

acosf4 - return arc cosines of float elements

SYNOPSIS

Procedure call syntax:

#include <simdmath.h>
vector float acosf4(vector float x);
Link with -lsimdmath

Inline call syntax:

#include <simdmath.h>
#include <acosf4.h>
vector float _acosf4(vector float x);
Parameters  
x input vector

DESCRIPTION

The acosf4 function returns a vector of the arc cosines of the elements of x. Inputs must be within the interval [-1,+1].

RETURN VALUE

The function acosf4 returns a float vector in which each element is defined as:
  • the arc cosine of the corresponding element of x, if the element of x is within the interval [-1,+1],
  • undefined otherwise.
Each element in the return vector is expressed in radians.

ENVIRONMENT

SPU and PPU

CONFORMING TO

SIMD Math library specification for the Cell Broadband Engine™ Architecture.

NOTES

Basis

ISO9899 (C99) acos functions.

SEE ALSO

acos(3), acosd2(3), sin(3), sinf4(3), sind2(3), cos(3), cosf4(3), cosd2(3), sincos(3), sincosf4(3), sincosd2(3), tan(3), tanf4(3), tand2(3), asin(3), asinf4(3), asind2(3), atan(3), atanf4(3), atand2(3), atan2(3), atan2f4(3), atan2d2(3)