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authorAlejandro Colomar <alx.manpages@gmail.com>2022-09-09 14:15:08 +0200
committerAlejandro Colomar <alx.manpages@gmail.com>2022-09-09 14:15:08 +0200
commit96e72ec1fbadd13cbcbc2b263540e4f5e9e09d7c (patch)
tree70686b943e33a6e939ad265acb7ddfef70b91f32 /man/man3/gamma.3
parent8f4ed6463206e8ede815c72085c7305dafc2e4fc (diff)
downloadman-pages-96e72ec1fbadd13cbcbc2b263540e4f5e9e09d7c.tar.gz
Revert "src.mk, All pages: Move man* to man/"
This reverts commit 70ac1c4785fc1e158ab2349a962dba2526bf4fbc. Link: <https://lore.kernel.org/linux-man/YxcV4h+Xn7cd6+q2@pevik/T/> Reported-by: Petr Vorel <pvorel@suse.cz> Reported-by: Jakub Wilk <jwilk@jwilk.net> Cc: Stefan Puiu <stefan.puiu@gmail.com> Signed-off-by: Alex Colomar <alx.manpages@gmail.com>
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-.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
-.\"
-.\" SPDX-License-Identifier: GPL-1.0-or-later
-.\"
-.\" Modified 2003-11-18, aeb: historical remarks
-.\"
-.TH GAMMA 3 2021-03-22 "Linux man-pages (unreleased)"
-.SH NAME
-gamma, gammaf, gammal \- (logarithm of the) gamma function
-.SH LIBRARY
-Math library
-.RI ( libm ", " \-lm )
-.SH SYNOPSIS
-.nf
-.B #include <math.h>
-.PP
-.BI "[[deprecated]] double gamma(double " x ");"
-.BI "[[deprecated]] float gammaf(float " x ");"
-.BI "[[deprecated]] long double gammal(long double " x ");"
-.fi
-.PP
-.RS -4
-Feature Test Macro Requirements for glibc (see
-.BR feature_test_macros (7)):
-.RE
-.PP
-.BR gamma ():
-.nf
- _XOPEN_SOURCE
- || /* Since glibc 2.19: */ _DEFAULT_SOURCE
- || /* Glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
-.fi
-.PP
-.BR gammaf (),
-.BR gammal ():
-.nf
- _XOPEN_SOURCE >= 600 || (_XOPEN_SOURCE && _ISOC99_SOURCE)
- || /* Since glibc 2.19: */ _DEFAULT_SOURCE
- || /* Glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
-.fi
-.SH DESCRIPTION
-These functions are deprecated: instead, use either the
-.BR tgamma (3)
-or the
-.BR lgamma (3)
-functions, as appropriate.
-.PP
-For the definition of the Gamma function, see
-.BR tgamma (3).
-.SS *BSD version
-The libm in 4.4BSD and some versions of FreeBSD had a
-.BR gamma ()
-function that computes the Gamma function, as one would expect.
-.SS glibc version
-Glibc has a
-.BR gamma ()
-function that is equivalent to
-.BR lgamma (3)
-and computes the natural logarithm of the Gamma function.
-.SH RETURN VALUE
-See
-.BR lgamma (3).
-.SH ERRORS
-See
-.BR lgamma (3).
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.ad l
-.nh
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface Attribute Value
-T{
-.BR gamma (),
-.BR gammaf (),
-.BR gammal ()
-T} Thread safety MT-Unsafe race:signgam
-.TE
-.hy
-.ad
-.sp 1
-.SH STANDARDS
-Because of historical variations in behavior across systems,
-this function is not specified in any recent standard.
-It was documented in SVID 2.
-.SH NOTES
-.SS History
-4.2BSD had a
-.BR gamma ()
-that computed
-.RI ln(|Gamma(| x |)|),
-leaving the sign of
-.RI Gamma(| x |)
-in the external integer
-.IR signgam .
-In 4.3BSD the name was changed to
-.BR lgamma (3),
-and the man page promises
-.PP
-.in +4n
-"At some time in the future the name gamma will be rehabilitated
-and used for the Gamma function"
-.in
-.PP
-This did indeed happen in 4.4BSD, where
-.BR gamma ()
-computes the Gamma function (with no effect on
-.IR signgam ).
-However, this came too late, and we now have
-.BR tgamma (3),
-the "true gamma" function.
-.\" The FreeBSD man page says about gamma() that it is like lgamma()
-.\" except that is does not set signgam.
-.\" Also, that 4.4BSD has a gamma() that computes the true gamma function.
-.SH SEE ALSO
-.BR lgamma (3),
-.BR signgam (3),
-.BR tgamma (3)