sin(3) - Linux manual page (original) (raw)

sin(3) Library Functions Manual sin(3)

NAME top

   sin, sinf, sinl - sine function

LIBRARY top

   Math library (_libm_, _-lm_)

SYNOPSIS top

   **#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 top

   These functions return the sine of _x_, where _x_ is given in radians.

RETURN VALUE top

   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 top

   See [math_error(7)](../man7/math%5Ferror.7.html) 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](../man3/errno.3.html)_ is set to **EDOM** (but see BUGS).  An invalid floating-
          point exception (**FE_INVALID**) is raised.

ATTRIBUTES top

   For an explanation of the terms used in this section, see
   [attributes(7)](../man7/attributes.7.html).
   ┌──────────────────────────────────────┬───────────────┬─────────┐
   │ **Interface** │ **Attribute** │ **Value** │
   ├──────────────────────────────────────┼───────────────┼─────────┤
   │ **sin**(), **sinf**(), **sinl**()                │ Thread safety │ MT-Safe │
   └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS top

   C11, POSIX.1-2008.

HISTORY top

   C99, POSIX.1-2001.

   The variant returning _double_ also conforms to SVr4, 4.3BSD, C89.

BUGS top

   Before glibc 2.10, the glibc implementation did not set _[errno](../man3/errno.3.html)_ to
   **EDOM** when a domain error occurred.

SEE ALSO top

   [acos(3)](../man3/acos.3.html), [asin(3)](../man3/asin.3.html), [atan(3)](../man3/atan.3.html), [atan2(3)](../man3/atan2.3.html), [cos(3)](../man3/cos.3.html), [csin(3)](../man3/csin.3.html), [sincos(3)](../man3/sincos.3.html),
   [tan(3)](../man3/tan.3.html)

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   man-pages@man7.org

Linux man-pages 6.10 2024-07-23 sin(3)

Pages that refer to this page:acos(3), asin(3), atan2(3), atan(3), cos(3), sincos(3), tan(3)