Provided by: manpages-dev_6.9.1-1_all 
NAME
sin, sinf, sinl - sine function
LIBRARY
Math library (libm, -lm)
SYNOPSIS
#include <math.h>
double sin(double x);
float sinf(float x);
long double sinl(long double x);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
sinf(), sinl():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
|| /* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
DESCRIPTION
These functions return the sine of x, where x is given in radians.
RETURN VALUE
On success, these functions return the sine of x.
If x is a NaN, a NaN is returned.
If x is positive infinity or negative infinity, a domain error occurs, and a NaN is returned.
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
errno is set to EDOM (but see BUGS). An invalid floating-point exception (FE_INVALID) is raised.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
┌─────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├─────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤
│ sin(), sinf(), sinl() │ Thread safety │ MT-Safe │
└─────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘
STANDARDS
C11, POSIX.1-2008.
HISTORY
C99, POSIX.1-2001.
The variant returning double also conforms to SVr4, 4.3BSD, C89.
BUGS
Before glibc 2.10, the glibc implementation did not set errno to EDOM when a domain error occurred.
SEE ALSO
acos(3), asin(3), atan(3), atan2(3), cos(3), csin(3), sincos(3), tan(3)
Linux man-pages 6.9.1 2024-05-02 sin(3)