LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity

catanh.3: Add example program 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2011-09-16 05:20:00 +02:00
parent c05ed63add
commit 849ef4a8ed
1 changed files with 31 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
man3/catanh.3
View File

@ -1,4 +1,5 @@
.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
.\" and Copyright (C) 2011 Michael Kerrisk <mtk.manpages@gamil.com>
.\" Distributed under GPL
.\"
.TH CATANH 3 2011-09-15 "" "Linux Programmer's Manual"
@ -33,6 +34,36 @@ One has:
These functions first appeared in glibc in version 2.1.
.SH "CONFORMING TO"
C99.
.SH EXAMPLE
.nf
/* Link with "\-lm" */
#include <complex.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
int
main(int argc, char *argv[])
{
double complex z, c, f;
if (argc != 3) {
fprintf(stderr, "Usage: %s <real> <imag>\\n", argv[0]);
exit(EXIT_FAILURE);
}
z = atof(argv[1]) + atof(argv[2]) * I;
c = catanh(z);
printf("catanh() = %6.3f %6.3f*i\\n", creal(c), cimag(c));
f = 0.5 * (clog(1 + z) \- clog(1 \- z));
printf("formula = %6.3f %6.3f*i\\n", creal(f2), cimag(f2));
exit(EXIT_SUCCESS);
}
.fi
.SH "SEE ALSO"
.BR atanh (3),
.BR cabs (3),