SINCOS
Section: Linux Programmer's Manual (3)
Updated: 20131223
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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.
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
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 floatingpoint exception
(FE_INVALID)
is raised.
These functions do not set
errno.
VERSIONS
These functions first appeared in glibc in version 2.1.
ATTRIBUTES
Multithreading (see pthreads(7))
The
sincos(),
sincosf(),
and
sincosl()
functions are threadsafe.
CONFORMING TO
This function is a GNU extension.
SEE ALSO
cos(3),
sin(3),
tan(3)
COLOPHON
This page is part of release 3.74 of the Linux
manpages
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/manpages/.
Index
 NAME

 SYNOPSIS

 DESCRIPTION

 RETURN VALUE

 ERRORS

 VERSIONS

 ATTRIBUTES

 Multithreading (see pthreads(7))

 CONFORMING TO

 SEE ALSO

 COLOPHON
