catanhf, catanh, catanhl

 

C

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Numerics

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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
Power and exponential functions
cexp clog	cpow csqrt
Trigonometric functions
ccos csin ctan	cacos casin catan
Hyperbolic functions
ccosh csinh ctanh	cacosh casinh catanh

 

Defined in header <complex.h>
float complex       catanhf( float complex z );		(since C99)
double complex      catanh( double complex z );		(since C99)
long double complex catanhl( long double complex z );		(since C99)

Computes the complex arc hyperbolic tangent of z with branch cuts outside the interval [−1; +1] along the real axis.

Parameters

z

-

complex argument

Return value

The complex arc hyperbolic tangent of z in the interval (−∞; +∞) along the real axis and in the interval [−iπ/2; +iπ/2] along the imaginary axis.

Example

Run this code

#include <stdio.h>
#include <complex.h>
 
int main(void)
{
    double complex z;
 
    z = ctanh(1.0+2.0*I);
    printf("ctanh(1.0+2.0*I)            ==> %f%+fi\n", creal(z),cimag(z));
 
    z = catanh(1.166736-0.243458*I);
    printf("catanh(1.166736-0.243458*I) ==> %f%+fi\n", creal(z),cimag(z));
 
    return 0;
}

Output:

ctanh(1.0+2.0*I)            ==> 1.166736-0.243458i
catanh(1.166736-0.243458*I) ==> 1.000000-1.141592i

See also

casinhcasinhfcasinhl (C99)(C99)(C99)	computes the complex arc hyperbolic sine (function)
cacoshcacoshfcacoshl (C99)(C99)(C99)	computes the complex arc hyperbolic cosine (function)
ctanhctanhfctanhl (C99)(C99)(C99)	computes the complex hyperbolic tangent (function)
atanhatanhfatanhl (C99)(C99)(C99)	computes inverse hyperbolic tangent (artanh(x)) (function)
C++ documentation for atanh