ccoshf, ccosh, ccoshl

 

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
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ccos csin ctan	cacos casin catan
Hyperbolic functions
ccosh csinh ctanh	cacosh casinh catanh

 

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.

Parameters

z

-

complex argument

Return value

The complex hyperbolic cosine 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 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

See also

csinhcsinhfcsinhl (C99)(C99)(C99)	computes the complex hyperbolic sine (function)
ctanhctanhfctanhl (C99)(C99)(C99)	computes the complex hyperbolic tangent (function)
cacoshcacoshfcacoshl (C99)(C99)(C99)	computes the complex arc hyperbolic cosine (function)
coshcoshfcoshl (C99)(C99)	computes hyperbolic cosine (ch(x)) (function)
C++ documentation for cosh