SINCOS
Section: Linux Programmer's Manual (3)
Updated: 2008-08-11
NAME
sincos, sincosf, sincosl - calculate sin and cos simultaneously
SYNOPSIS
#define _GNU_SOURCE
#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.
CONFORMING TO
This function is a GNU extension.
SEE ALSO
cos(3),
sin(3),
tan(3),
feature_test_macros(7)
COLOPHON
This page is part of release 3.27 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/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- VERSIONS
-
- CONFORMING TO
-
- SEE ALSO
-
- COLOPHON
-
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Time: 07:35:33 GMT, March 26, 2013