2004-11-03 13:51:07 +00:00
|
|
|
.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
|
|
|
|
.\" Distributed under GPL
|
|
|
|
.\"
|
|
|
|
.TH CASINH 3 2002-07-28 "" "complex math routines"
|
|
|
|
.SH NAME
|
|
|
|
casinh, casinhf, casinhl \- complex arc sine hyperbolic
|
|
|
|
.SH SYNOPSIS
|
|
|
|
.B #include <complex.h>
|
|
|
|
.sp
|
|
|
|
.BI "double complex casinh(double complex " z );
|
2004-11-11 17:28:42 +00:00
|
|
|
.br
|
2004-11-03 13:51:07 +00:00
|
|
|
.BI "float complex casinhf(float complex " z );
|
2004-11-11 17:28:42 +00:00
|
|
|
.br
|
2004-11-03 13:51:07 +00:00
|
|
|
.BI "long double complex casinhl(long double complex " z );
|
|
|
|
.sp
|
|
|
|
Link with \-lm.
|
|
|
|
.SH DESCRIPTION
|
2005-10-19 14:48:35 +00:00
|
|
|
The
|
|
|
|
.BR casinh ()
|
|
|
|
function calculates the complex asinh().
|
2004-11-03 13:51:07 +00:00
|
|
|
If y = casinh(z), then z = csinh(y).
|
2005-07-07 08:27:03 +00:00
|
|
|
The imaginary part of y is chosen in the interval [\-pi/2,pi/2].
|
2004-11-03 13:51:07 +00:00
|
|
|
.LP
|
|
|
|
One has casinh(z) = clog(z+csqrt(z*z+1)).
|
|
|
|
.SH "CONFORMING TO"
|
|
|
|
C99
|
|
|
|
.SH "SEE ALSO"
|
|
|
|
.BR asinh (3),
|
|
|
|
.BR cabs (3),
|
|
|
|
.BR cimag (3),
|
2006-04-21 01:24:06 +00:00
|
|
|
.BR complex (7)
|