ctanhf, ctanh, ctanhl

 

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Complex number arithmetic

Types and the imaginary constant
complex Complex_I CMPLX	imaginary Imaginary_I I
Manipulation
cimag creal carg	conj cproj
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ccos csin ctan	cacos casin catan
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ccosh csinh ctanh	cacosh casinh catanh

 

Defined in header <complex.h>
float complex       ctanhf( float complex z );		(since C99)
double complex      ctanh( double complex z );		(since C99)
long double complex ctanhl( long double complex z );		(since C99)

Computes the complex hyperbolic tangent of z.

Parameters

z

-

complex argument

Return value

The complex hyperbolic tangent of z.

Example

Run this code

#include <stdio.h>
#include <complex.h>
#include <math.h>
 
#define PI acos(-1)
 
int main(void)
{
    double complex z;
 
    /* Hyperbolic functions are periodic with respect to the imaginary component. */
    /* The period of tanh is pi*i.                                                */
    z = ctanh(0.0+0.0*PI*I);
    printf("ctanh(0.0+0*PI*I) ==> %f%+fi\n", creal(z),cimag(z));
 
    z = ctanh(0.0 + 1*PI*I);
    printf("ctanh(0.0+1*PI*I) ==> %f%+fi\n", creal(z),cimag(z));
 
    z = ctanh(0.0 + 2*PI*I);
    printf("ctanh(0.0+2*PI*I) ==> %f%+fi\n", creal(z),cimag(z));
 
    return 0;
}

Output:

ctanh(0.0+0*PI*I) ==> 0.000000+0.000000i
ctanh(0.0+1*PI*I) ==> 0.000000-0.000000i
ctanh(0.0+2*PI*I) ==> 0.000000-0.000000i

See also

csinhcsinhfcsinhl (C99)(C99)(C99)	computes the complex hyperbolic sine (function)
ccoshccoshfccoshl (C99)(C99)(C99)	computes the complex hyperbolic cosine (function)
catanhcatanhfcatanhl (C99)(C99)(C99)	computes the complex arc hyperbolic tangent (function)
tanhtanhftanhl (C99)(C99)	computes hyperbolic tangent (function)
C++ documentation for tanh