GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 4.8 |
i386 |
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catanhl(3) |
 |
catanh, catanhf, catanhl − complex arc tangents hyperbolic
#include <complex.h>
double complex catanh(double complex z);
float complex catanhf(float complex double z);
long double complex catanhl(long double complex z);
The catanh() function calculates the complex atanh(). If y = catanh(z), then z = ctanh(y). The imaginary part of y is chosen in the interval [-pi/2*i,pi/2*i].
One has catanh(z) = 0.5*clog((1+z)/(1-z)).
C99
cabs(3), cimag(3), atanh(3)
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catanhl(3) | |