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SIN 3M "Jul 12, 2006" "SunOS 5.11" "Mathematical Library Functions"
NAME
sin, sinf, sinl - sine function
SYNOPSIS

```c99 [ flag... ] file... -lm [ library... ]
#include <math.h>

double sin(double x);
```

```float sinf(float x);
```

```long double sinl(long double x);
```
DESCRIPTION

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

RETURN VALUES

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.

ERRORS

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.

USAGE

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.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

 ATTRIBUTE TYPE ATTRIBUTE VALUE Interface Stability Standard MT-Level MT-Safe