NAME¶

sin, sinf, sinl - sine function

SYNOPSIS¶

#include <math.h>

double sin(double x);


float sinf(float x);


long double sinl(long double x);

Link with -lm.

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

sinf(), sinl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99

DESCRIPTION¶

The sin() function returns 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

An invalid floating-point exception (FE_INVALID) is raised.

These functions do not set errno.

CONFORMING TO¶

C99, POSIX.1-2001. The variant returning double also conforms to SVr4, 4.3BSD, C89.

SEE ALSO¶

acos(3), asin(3), atan(3), atan2(3), cos(3), csin(3), sincos(3), tan(3)

COLOPHON¶

This page is part of release 3.22 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/.