Compute the complex tangent
#include <complex.h> double complex ctan( double complex z ); float complex ctanf( float complex z ); long double complex ctanl( long double complex z );
These functions compute the complex tangent of z.
To check for error situations, use feclearexcept() and fetestexcept(). For example:
The complex tangent of z. Errors and special cases are handled as if the operation were implemented as -i * ctanh(i * z).
These functions raise FE_INEXACT if the FPU reports that the result can't be exactly represented as a floating-point number.
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | No |
Thread | Yes |