6.2.71 ctanhl Function

Calculates the complex hyperbolic tangent function of a long double precision complex value.

Include

<complex.h>

Prototype

long double complex ctanhl(long double complex z);

Argument

z

value for which to return the complex hyperbolic tangent

Return Value

Returns the complex hyperbolic tangent of z.

Example

See the notes at the beginning of this chapter or section for information on using printf() or scanf() (and other functions reading and writing the stdin or stdout streams) in the example code.

#include <stdio.h>
#include <complex.h>

int main(void)
{
  long double complex x, y;

  x = -2.0 + 1.0*I;
  y = ctanhl(x);
  printf("The complex hyperbolic tangent of %Lf + %Lfi is %Lf + %Lfi\n", creall(x), cimagl(x), creall(y), cimagl(y));
}

Example Output

The complex hyperbolic tangent of -2.000000 + 1.000000i is -1.014794 + 0.033813i