summaryrefslogtreecommitdiffstats
path: root/man3/catanh.3
diff options
context:
space:
mode:
Diffstat (limited to 'man3/catanh.3')
-rw-r--r--man3/catanh.394
1 files changed, 0 insertions, 94 deletions
diff --git a/man3/catanh.3 b/man3/catanh.3
deleted file mode 100644
index 48abbaa..0000000
--- a/man3/catanh.3
+++ /dev/null
@@ -1,94 +0,0 @@
-'\" t
-.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
-.\" and Copyright (C) 2011 Michael Kerrisk <mtk.manpages@gmail.com>
-.\"
-.\" SPDX-License-Identifier: GPL-1.0-or-later
-.\"
-.TH catanh 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-catanh, catanhf, catanhl \- complex arc tangents hyperbolic
-.SH LIBRARY
-Math library
-.RI ( libm ", " \-lm )
-.SH SYNOPSIS
-.nf
-.B #include <complex.h>
-.P
-.BI "double complex catanh(double complex " z );
-.BI "float complex catanhf(float complex " z );
-.BI "long double complex catanhl(long double complex " z );
-.fi
-.SH DESCRIPTION
-These functions calculate the complex arc hyperbolic tangent of
-.IR z .
-If \fIy\~=\~catanh(z)\fP, then \fIz\~=\~ctanh(y)\fP.
-The imaginary part of
-.I y
-is chosen in the interval [\-pi/2,pi/2].
-.P
-One has:
-.P
-.in +4n
-.EX
-catanh(z) = 0.5 * (clog(1 + z) \- clog(1 \- z))
-.EE
-.in
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface Attribute Value
-T{
-.na
-.nh
-.BR catanh (),
-.BR catanhf (),
-.BR catanhl ()
-T} Thread safety MT-Safe
-.TE
-.SH STANDARDS
-C11, POSIX.1-2008.
-.SH HISTORY
-glibc 2.1.
-C99, POSIX.1-2001.
-.SH EXAMPLES
-.\" SRC BEGIN (catanh.c)
-.EX
-/* Link with "\-lm" */
-\&
-#include <complex.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-\&
-int
-main(int argc, char *argv[])
-{
- double complex z, c, f;
-\&
- if (argc != 3) {
- fprintf(stderr, "Usage: %s <real> <imag>\en", argv[0]);
- exit(EXIT_FAILURE);
- }
-\&
- z = atof(argv[1]) + atof(argv[2]) * I;
-\&
- c = catanh(z);
- printf("catanh() = %6.3f %6.3f*i\en", creal(c), cimag(c));
-\&
- f = 0.5 * (clog(1 + z) \- clog(1 \- z));
- printf("formula = %6.3f %6.3f*i\en", creal(f), cimag(f));
-\&
- exit(EXIT_SUCCESS);
-}
-.EE
-.\" SRC END
-.SH SEE ALSO
-.BR atanh (3),
-.BR cabs (3),
-.BR cimag (3),
-.BR ctanh (3),
-.BR complex (7)