Man Page
Manual Section... (3) - page: catanhl
NAME
catanh, catanhf, catanhl - complex arc tangents hyperbolicSYNOPSIS
#include <complex.h>
double complex catanh(double complex z);
float complex catanhf(float complex z);
long double complex catanhl(long double complex z);
DESCRIPTION
The catanh() function calculates the complex arc hyperbolic tangent of z. 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))
VERSIONS
These functions first appeared in glibc in version 2.1.CONFORMING TO
C99.SEE ALSO
atanh(3), cabs(3), cimag(3), complex(7)COLOPHON
This page is part of release 3.24 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
Index
This document was created by man2html, using the manual pages.
Time: 15:27:01 GMT, June 11, 2010