SINCOS(3)		   Linux Programmer's Manual		     SINCOS(3)



NAME
       sincos, sincosf, sincosl - calculate sin and cos simultaneously

SYNOPSIS
       #define _GNU_SOURCE	   /* See feature_test_macros(7) */
       #include <math.h>

       void sincos(double x, double *sin, double *cos);
       void sincosf(float x, float *sin, float *cos);
       void sincosl(long double x, long double *sin, long double *cos);

       Link with -lm.

DESCRIPTION
       Several	applications  need sine and cosine of the same angle x.	 These
       functions compute both at the same time, and store the results in  *sin
       and *cos.

       If x is a NaN, a NaN is returned in *sin and *cos.

       If  x is positive infinity or negative infinity, a domain error occurs,
       and a NaN is returned in *sin and *cos.

RETURN VALUE
       These functions return void.

ERRORS
       See math_error(7) for information on how to determine whether an	 error
       has occurred when calling these functions.

       The following errors can occur:

       Domain error: x is an infinity
	      An invalid floating-point exception (FE_INVALID) is raised.

       These functions do not set errno.

VERSIONS
       These functions first appeared in glibc in version 2.1.

ATTRIBUTES
       For   an	  explanation	of   the  terms	 used  in  this	 section,  see
       attributes(7).

       +-------------------------------+---------------+---------+
       |Interface		       | Attribute     | Value	 |
       +-------------------------------+---------------+---------+
       |sincos(), sincosf(), sincosl() | Thread safety | MT-Safe |
       +-------------------------------+---------------+---------+
CONFORMING TO
       These functions are GNU extensions.

SEE ALSO
       cos(3), sin(3), tan(3)

COLOPHON
       This page is part of release 4.10 of the Linux  man-pages  project.   A
       description  of	the project, information about reporting bugs, and the
       latest	 version    of	  this	  page,	   can	   be	  found	    at
       https://www.kernel.org/doc/man-pages/.



GNU				  2015-03-02			     SINCOS(3)