1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
2 .\" Distributed under GPL
4 .TH CASINH 3 2002-07-28 "" "complex math routines"
6 casinh, casinhf, casinhl \- complex arc sine hyperbolic
8 .B #include <complex.h>
10 .BI "double complex casinh(double complex " z );
12 .BI "float complex casinhf(float complex " z );
14 .BI "long double complex casinhl(long double complex " z );
20 function calculates the complex asinh().
21 If y = casinh(z), then z = csinh(y).
22 The imaginary part of y is chosen in the interval [\-pi/2,pi/2].
24 One has casinh(z) = clog(z+csqrt(z*z+1)).