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