1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
2 .\" Distributed under GPL
4 .TH CTANH 3 2008-08-11 "" "Linux Programmer's Manual"
6 ctanh, ctanhf, ctanhl \- complex hyperbolic tangent
8 .B #include <complex.h>
10 .BI "double complex ctanh(double complex " z ");"
12 .BI "float complex ctanhf(float complex " z );
14 .BI "long double complex ctanhl(long double complex " z ");"
18 The complex hyperbolic tangent function is defined
22 ctanh(z) = csinh(z) / ccosh(z)
25 These functions first appeared in glibc in version 2.1.