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__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(+-_, 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