sin, sinf, sinl - sine function
#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():
_ISOC99_SOURCE ||
_POSIX_C_SOURCE >= 200112L
|| /* Since glibc 2.19: */ _DEFAULT_SOURCE
|| /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
These functions return the sine of
x, where
x is given in radians.
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.
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.
For an explanation of the terms used in this section, see
attributes(7).
| Interface |
Attribute |
Value |
| sin (), sinf (), sinl () |
Thread safety |
MT-Safe |
C99, POSIX.1-2001, POSIX.1-2008.
The variant returning
double also conforms to SVr4, 4.3BSD, C89.
Before version 2.10, the glibc implementation did not set
errno to
EDOM when a domain error occurred.
acos(3),
asin(3),
atan(3),
atan2(3),
cos(3),
csin(3),
sincos(3),
tan(3)