csin(), csinf(), csinl()

Compute the complex sine

Synopsis:

#include <complex.h>

double complex csin( double complex z );

float complex csinf( float complex z );

long double complex csinl( long double complex z );

Arguments:

z: The complex value that you want to get the complex sine of.

Library:

libm

Use the -l m option to qcc to link against this library.

Description:

These functions compute the complex sine of z. The sine is an entire function on the complex plane, and has no branch cuts.

To check for error situations, use feclearexcept() and fetestexcept(). For example:

Call feclearexcept(FE_ALL_EXCEPT) before calling csin(), csinf(), or csinl().
On return, if fetestexcept(FE_ALL_EXCEPT) is nonzero, then an error has occurred.

Returns:

The complex sine of z. Errors and special cases are handled as if the operation were implemented as -i * csinh(i * z).

These functions raise FE_INEXACT if the FPU reports that the result can't be exactly represented as a floating-point number.

Classification:

ANSI, POSIX 1003.1

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	No
Thread	Yes