NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | VERSIONS | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON

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

NAME         top

       sincos, sincosf, sincosl - calculate sin and cos simultaneously

SYNOPSIS         top

       #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         top

       Several applications need sine and cosine of the same angle x.  This
       function computes both at the same time, and stores 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         top

       These functions return void.

ERRORS         top

       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         top

       These functions first appeared in glibc in version 2.1.

ATTRIBUTES         top

   Multithreading (see pthreads(7))
       The sincos(), sincosf(), and sincosl() functions are thread-safe.

CONFORMING TO         top

       This function is a GNU extension.

SEE ALSO         top

       cos(3), sin(3), tan(3)

COLOPHON         top

       This page is part of release 3.72 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
       http://www.kernel.org/doc/man-pages/.

GNU                              2013-12-23                        SINCOS(3)