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sincosf
Langue: en
Version: 2008-08-11 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
NAME
sincos, sincosf, sincosl - calculate sin and cos simultaneouslySYNOPSIS
#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
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