SINCOS

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

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 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).

Image grohtml-146301.png

CONFORMING TO

This function is a GNU extension.

SEE ALSO

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

COLOPHON

This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man−pages/.