NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

ERRORS

VERSIONS

ATTRIBUTES

CONFORMING TO

SEE ALSO

COLOPHON

## NAME

## SYNOPSIS

## DESCRIPTION

## RETURN VALUE

## ERRORS

## VERSIONS

## ATTRIBUTES

## CONFORMING TO

## SEE ALSO

## COLOPHON

SYNOPSIS

DESCRIPTION

RETURN VALUE

ERRORS

VERSIONS

ATTRIBUTES

CONFORMING TO

SEE ALSO

COLOPHON

sincos, sincosf, sincosl − calculate sin and cos simultaneously

**#define
_GNU_SOURCE** /* See feature_test_macros(7) */

#include <math.h>

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

void sincosl(long double

Link with
*−lm*.

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*.

These functions
return *void*.

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*.

These functions first appeared in glibc in version 2.1.

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

These functions are GNU extensions.

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

This page is
part of release 4.04 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/.