SIN(3M) | Mathematical Library Functions | SIN(3M) |

sin, sinf, sinl - sine function

c99 [flag... ]file...-lm[library... ] #include <math.h>doublesin(doublex);

floatsinf(floatx);

long doublesinl(long doublex);

These functions compute the sine of its argument *x*,
measured in radians.

Upon successful completion, these functions return the sine of
*x*.

If *x* is NaN, a NaN is returned.

If *x* is ±0, *x* is returned.

If *x* is ±Inf, a domain error occurs and a NaN is
returned.

These functions will fail if:

**Domain Error**

The *x* argument is ±Inf.

If the integer expression (**math_errhandling** &
**MATH_ERREXCEPT**) is non-zero, then the invalid floating-point
exception is raised.

An application wanting to check for exceptions should call
**feclearexcept**(**FE_ALL_EXCEPT**) before calling these functions.
On return, if **fetestexcept**(**FE_INVALID** | **FE_DIVBYZERO** |
**FE_OVERFLOW** | **FE_UNDERFLOW**) is non-zero, an exception has been
raised. An application should either examine the return value or check the
floating point exception flags to detect exceptions.

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE | ATTRIBUTE VALUE |

Interface Stability | Standard |

MT-Level | MT-Safe |

math.h(3HEAD), asin(3M), feclearexcept(3M), fetestexcept(3M), isnan(3M), attributes(7), standards(7)

July 12, 2006 | SunOS 5.11 |