table of contents
SIN(3) | Linux Programmer's Manual | SIN(3) |
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():
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
- errno is set to EDOM (but see BUGS). An invalid floating-point exception (FE_INVALID) is raised.
CONFORMING TO¶
C99, POSIX.1-2001. The variant returning double also conforms to SVr4, 4.3BSD, C89.
BUGS¶
Before version 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)
COLOPHON¶
This page is part of release 3.53 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/.
2010-09-11 |