GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.2 |
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catanh(3) |
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catanh, catanhf, catanhl − complex arc tangents hyperbolic
#include <complex.h>
double
complex catanh(double complex z);
float complex catanhf(float complex z);
long double complex catanhl(long double complex
z);
Link with −lm.
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,pi/2].
One has catanh(z) = 0.5*clog((1+z)/(1−z)).
C99
atanh(3), cabs(3), cimag(3), complex(7)
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catanh(3) | |