sincos(3)
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 3.25 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/.