atanf4

NAME

atanf4 - return arc tangents of float elements

SYNOPSIS

Procedure call syntax:

#include <simdmath.h>

vector float atanf4(vector float x);

Link with -lsimdmath

Inline call syntax:

#include <simdmath.h>

#include <atanf4.h>

vector float _atanf4(vector float x);

Parameters
x	input vector

DESCRIPTION

The atanf4 function returns a vector of the arc tangents of the elements of x. Each element in the return vector is expressed in radians.

RETURN VALUE

The function atanf4 returns a float vector in which each element is defined as the arc tangent of the corresponding element of x. Each element in the return vector is expressed in radians. Return values will be within the interval [-pi/2,pi/2] .

If the corresponding elements of x and y are zero then the corresponding element of the result is undefined.

ENVIRONMENT

SPU and PPU

CONFORMING TO

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

NOTES

Basis

ISO9899 (C99) atan functions.