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diff --git a/man3/gamma.3 b/man3/gamma.3 deleted file mode 100644 index 3080624..0000000 --- a/man3/gamma.3 +++ /dev/null @@ -1,121 +0,0 @@ -'\" t -.\" 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 2023-10-31 "Linux man-pages 6.7" -.SH NAME -gamma, gammaf, gammal \- (logarithm of the) gamma function -.SH LIBRARY -Math library -.RI ( libm ", " \-lm ) -.SH SYNOPSIS -.nf -.B #include <math.h> -.P -.BI "[[deprecated]] double gamma(double " x ");" -.BI "[[deprecated]] float gammaf(float " x ");" -.BI "[[deprecated]] long double gammal(long double " x ");" -.fi -.P -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.P -.BR gamma (): -.nf - _XOPEN_SOURCE - || /* Since glibc 2.19: */ _DEFAULT_SOURCE - || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE -.fi -.P -.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. -.P -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). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR gamma (), -.BR gammaf (), -.BR gammal () -T} Thread safety MT-Unsafe race:signgam -.TE -.SH STANDARDS -None. -.SH HISTORY -SVID 2. -.P -Because of historical variations in behavior across systems, -this function is not specified in any recent standard. -.P -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 -.P -.in +4n -"At some time in the future the name gamma will be rehabilitated -and used for the Gamma function" -.in -.P -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) |