__SINCOS(3) BSD Library Functions Manual __SINCOS(3)
NAME
__sincos -- sine-cosine function
SYNOPSIS
#include <math.h>
void
__sincosf(float x, float *sinp, float *cosp);
void
__sincos(double x, double *sinp, double *cosp);
DESCRIPTION
The __sincos() function computes the sine and cosine of x (measured in radians) and stores the sine in the memory pointed to by sinp and the
cosine in the memory pointed to by cosp.
SPECIAL VALUES
__sincos(+-0, sinp, cosp) sets *sinp to +-0 and sets *cosp to +1.
__sincos(+-infinity, sinp, cosp) raises the "invalid" floating-point exception and sets both *sinp and *cosp to NaN.
VECTOR OPERATIONS
If you need to apply the __sincos() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework
may be useful:
#include <Accelerate/Accelerate.h>
vFloat vsincosf(vFloat x, vFloat *c);
void vvsincosf(float *s, float *c, const float *x, const int *n);
void vvsincos(double *s, double *c, const double *x, const int *n);
SEE ALSO
cos(3), sin(3), tan(3), math(3)
BSD
December 15, 2012 BSD
