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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
commit | 3d08cd331c1adcf0d917392f7e527b3f00511748 (patch) | |
tree | 312f0d1e1632f48862f044b8bb87e602dcffb5f9 /man3/cacos.3 | |
parent | Adding debian version 6.7-2. (diff) | |
download | manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.tar.xz manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.zip |
Merging upstream version 6.8.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man3/cacos.3')
-rw-r--r-- | man3/cacos.3 | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/man3/cacos.3 b/man3/cacos.3 deleted file mode 100644 index 3c66ff8..0000000 --- a/man3/cacos.3 +++ /dev/null @@ -1,93 +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 cacos 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -cacos, cacosf, cacosl \- complex arc cosine -.SH LIBRARY -Math library -.RI ( libm ", " \-lm ) -.SH SYNOPSIS -.nf -.B #include <complex.h> -.P -.BI "double complex cacos(double complex " z ); -.BI "float complex cacosf(float complex " z ); -.BI "long double complex cacosl(long double complex " z ); -.fi -.SH DESCRIPTION -These functions calculate the complex arc cosine of -.IR z . -If \fIy\ =\ cacos(z)\fP, then \fIz\ =\ ccos(y)\fP. -The real part of -.I y -is chosen in the interval [0,pi]. -.P -One has: -.P -.nf - cacos(z) = \-i * clog(z + i * csqrt(1 \- z * z)) -.fi -.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 cacos (), -.BR cacosf (), -.BR cacosl () -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 (cacos.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; - double complex i = I; -\& - if (argc != 3) { - fprintf(stderr, "Usage: %s <real> <imag>\en", argv[0]); - exit(EXIT_FAILURE); - } -\& - z = atof(argv[1]) + atof(argv[2]) * I; -\& - c = cacos(z); -\& - printf("cacos() = %6.3f %6.3f*i\en", creal(c), cimag(c)); -\& - f = \-i * clog(z + i * csqrt(1 \- z * z)); -\& - printf("formula = %6.3f %6.3f*i\en", creal(f), cimag(f)); -\& - exit(EXIT_SUCCESS); -} -.EE -.\" SRC END -.SH SEE ALSO -.BR ccos (3), -.BR clog (3), -.BR complex (7) |