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ccoshf, ccosh, ccoshl

From cppreference.com
< c‎ | numeric‎ | complex
Defined in header <complex.h>
float complex       ccoshf( float complex z );
(since C99)
double complex      ccosh( double complex z );
(since C99)
long double complex ccoshl( long double complex z );
(since C99)

Computes the complex hyperbolic cosine of z.

Contents

[edit] Parameters

z - complex argument

[edit] Return value

The complex hyperbolic cosine of z.

[edit] Example

#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 cosh is 2*pi*i.                                              */
    z = ccosh(0.0+0.0*PI*I);
    printf("ccosh(0.0+0*PI*I) ==> %f%+fi\n", creal(z),cimag(z));
 
    z = ccosh(0.0 + 2*PI*I);
    printf("ccosh(0.0+2*PI*I) ==> %f%+fi\n", creal(z),cimag(z));
 
    z = ccosh(0.0 + 4*PI*I);
    printf("ccosh(0.0+4*PI*I) ==> %f%+fi\n", creal(z),cimag(z));
 
    return 0;
}

Output:

ccosh(0.0+0*PI*I) ==> 1.000000+0.000000i
ccosh(0.0+2*PI*I) ==> 1.000000-0.000000i
ccosh(0.0+4*PI*I) ==> 1.000000-0.000000i

[edit] See also

(C99)(C99)(C99)
computes the complex hyperbolic sine
(function) [edit]
(C99)(C99)(C99)
computes the complex hyperbolic tangent
(function) [edit]
(C99)(C99)(C99)
computes the complex arc hyperbolic cosine
(function) [edit]
(C99)(C99)
computes hyperbolic cosine (ch(x))
(function) [edit]