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| author |   martynas <martynas@openbsd.org> | 2011-07-20 17:50:43 +0000 |
|---|---|---|
| committer | martynas <martynas@openbsd.org> | 2011-07-20 17:50:43 +0000 |
| commit | 2bfdbafec9951640ad90a58b3c5683cd216ec3b5 (patch) | |
| tree | 1b50665a05a65c2d284a6bdb519d024b25e119ea /lib/libm/man/cacosh.3 | |
| parent | - Replace digicert 2nd-level cert with the root which issued it. (diff) | |
| download | wireguard-openbsd-2bfdbafec9951640ad90a58b3c5683cd216ec3b5.tar.xz wireguard-openbsd-2bfdbafec9951640ad90a58b3c5683cd216ec3b5.zip | |
Document complex math library.
Diffstat (limited to 'lib/libm/man/cacosh.3')
| -rw-r--r-- | lib/libm/man/cacosh.3 | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/libm/man/cacosh.3 b/lib/libm/man/cacosh.3 new file mode 100644 index 00000000000..decabb2de4c --- /dev/null +++ b/lib/libm/man/cacosh.3 @@ -0,0 +1,68 @@ +.\" $OpenBSD: cacosh.3,v 1.1 2011/07/20 17:50:43 martynas Exp $ +.\" +.\" Copyright (c) 2011 Martynas Venckus <martynas@openbsd.org> +.\" +.\" Permission to use, copy, modify, and distribute this software for any +.\" purpose with or without fee is hereby granted, provided that the above +.\" copyright notice and this permission notice appear in all copies. +.\" +.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +.\" +.Dd $Mdocdate: July 20 2011 $ +.Dt CACOSH 3 +.Os +.Sh NAME +.Nm cacosh , +.Nm cacoshf , +.Nm cacoshl +.Nd complex inverse hyperbolic cosine +.Sh SYNOPSIS +.Fd #include <complex.h> +.Ft double complex +.Fn cacosh "double complex z" +.Ft float complex +.Fn cacoshf "float complex z" +.Ft long double complex +.Fn cacoshl "long double complex z" +.Sh DESCRIPTION +The +.Fn cacosh , +.Fn cacoshf +and +.Fn cacoshl +functions compute the complex inverse hyperbolic cosine of +.Fa z . +.Pp +For all complex floating-point numbers +.Fa z , +.Bd -literal -offset indent +cacosh(z) = i acos(z). +.Ed +.Sh RETURN VALUES +The +.Fn cacosh , +.Fn cacoshf +and +.Fn cacoshl +functions return the complex inverse hyperbolic cosine of +.Fa z +with imaginary part in the interval +.Bq -Pi, Pi , +and non-negative real part. +.Sh SEE ALSO +.Xr casinh 3 , +.Xr catanh 3 +.Sh STANDARDS +The +.Fn cacosh , +.Fn cacoshf +and +.Fn cacoshl +functions conform to +.St -isoC-99 . |