1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
2 .\" Distributed under GPL
3 .\" based on glibc infopages
4 .\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk
5 .\" <mtk.manpages@gmail.com>
7 .\" Japanese Version Copyright (c) 2002 Akihiro MOTOKI
8 .\" all rights reserved.
9 .\" Translated Sun Sep 22 08:44:32 2002
10 .\" by Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
11 .\" Updated & Modified Sat Feb 12 12:40:00 2005
12 .\" by SAITOH Akira <s-akira@users.sourceforge.net>
13 .\" Updated 2008-09-18, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
15 .TH LGAMMA 3 2008-08-05 "" "Linux Programmer's Manual"
17 lgamma, lgammaf, lgammal, lgamma_r, lgammaf_r, lgammal_r, signgam \-
18 ¥¬¥ó¥Þ´Ø¿ô¤ÎÂпô¤ò·×»»¤¹¤ë
23 .BI "double lgamma(double " x );
25 .BI "float lgammaf(float " x );
27 .BI "long double lgammal(long double " x );
29 .BI "double lgamma_r(double " x ", int *" signp );
31 .BI "float lgammaf_r(float " x ", int *" signp );
33 .BI "long double lgammal_r(long double " x ", int *" signp );
35 .BI "extern int " signgam ;
38 \fI\-lm\fP ¤Ç¥ê¥ó¥¯¤¹¤ë¡£
41 glibc ¸þ¤±¤Îµ¡Ç½¸¡ºº¥Þ¥¯¥í¤ÎÍ×·ï
42 .RB ( feature_test_macros (7)
48 _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE || _ISOC99_SOURCE; or
53 _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE\ >=\ 600 || _ISOC99_SOURCE; or
59 _BSD_SOURCE || _SVID_SOURCE
62 _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE
65 ¥¬¥ó¥Þ´Ø¿ô¤ÎÄêµÁ¤Ë¤Ä¤¤¤Æ¤Ï¡¢
71 ¤Ï¡¢¥¬¥ó¥Þ´Ø¿ô¤ÎÀäÂÐÃͤμ«Á³Âпô¤òÊÖ¤¹¡£
74 ¤ÇÀë¸À¤µ¤ì¤Æ¤¤¤ë extern int \fIsigngam\fP ¤Ë³ÊǼ¤µ¤ì¤ë¡£
75 ³ÊǼ¤µ¤ì¤ëÃͤϡ¢¥¬¥ó¥Þ´Ø¿ô¤¬Àµ¤Þ¤¿¤Ï 0 ¤Î¾ì¹ç 1¡¢
79 ¤È¤¤¤¦¸ÇÄꤵ¤ì¤¿¾ì½ê¤ò»È¤¦¤³¤È¤Ï¥¹¥ì¥Ã¥É¥»¡¼¥Õ¤Ç¤Ï¤Ê¤¤¤Î¤Ç¡¢
82 ¤Ê¤É¤¬Æ³Æþ¤µ¤ì¤Æ¤¤¤ë¡£
83 ¤³¤ì¤é¤Î´Ø¿ô¤Ç¤Ï¡¢Éä¹æ¤Ï°ú¤¿ô
87 À®¸ù¤¹¤ë¤È¡¢¤³¤ì¤é¤Î´Ø¿ô¤Ï Gamma(x) ¤Î¼«Á³Âпô¤òÊÖ¤¹¡£
90 ¤¬ NaN ¤Î¾ì¹ç¡¢NaN ¤¬ÊÖ¤µ¤ì¤ë¡£
93 ¤¬ 1 ¤« 2 ¤Î¾ì¹ç¡¢+0 ¤¬ÊÖ¤µ¤ì¤ë¡£
96 ¤¬Àµ¤Î̵¸ÂÂ礫Éé¤Î̵¸ÂÂç¤Î¾ì¹ç¡¢
97 Àµ¤Î̵¸ÂÂ礬ÊÖ¤µ¤ì¤ë¡£
100 ¤¬Àµ¤Ç¤Ê¤¤À°¿ô¤Î¾ì¹ç¡¢¶Ë¥¨¥é¡¼ (pole error) ¤¬È¯À¸¤·¡¢
107 .\" e.g., lgamma(DBL_MAX)
108 ·ë²Ì¤¬¥ª¡¼¥Ð¡¼¥Õ¥í¡¼¤¹¤ë¾ì¹ç¡¢ÈÏ°Ï¥¨¥é¡¼¤¬È¯À¸¤·¡¢
113 ¤òÊÖ¤¹¡£ÊÖ¤êÃͤˤϿô³ØŪ¤ËÀµ¤·¤¤Éä¹æ¤¬ÉÕÍ¿¤µ¤ì¤ë¡£
115 ¤³¤ì¤é¤Î´Ø¿ô¤ò¸Æ¤Ó½Ð¤·¤¿ºÝ¤Ë¥¨¥é¡¼¤¬È¯À¸¤·¤¿¤«¤ÎȽÄêÊýË¡¤Ë¤Ä¤¤¤Æ¤Î¾ðÊó¤Ï
119 °Ê²¼¤Î¥¨¥é¡¼¤¬È¯À¸¤¹¤ë²ÄǽÀ¤¬¤¢¤ë¡£
121 ¶Ë¥¨¥é¡¼: \fIx\fP ¤¬Àµ¤Ç¤Ê¤¤À°¿ô
122 .\" FIXME . glibc 2.8 gives EDOM!
126 ¤¬ÀßÄꤵ¤ì¤ë (¡Ö¥Ð¥°¡×¤ÎÀá¤ò»²¾È)¡£
127 0 ¤Ë¤è¤ë½ü»» (divide-by-zero) ÉâÆ°¾®¿ôÅÀÎã³°
131 ÈÏ°Ï¥¨¥é¡¼: ·ë²Ì¤Î¥ª¡¼¥Ð¡¼¥Õ¥í¡¼
136 ¥ª¡¼¥Ð¡¼¥Õ¥í¡¼ÉâÆ°¾®¿ôÅÀÎã³°
139 .\" glibc (as at 2.8) also supports an inexact
140 .\" exception for various cases.
144 ¤Ï C99 ¤È POSIX.1-2001 ¤Çµ¬Äꤵ¤ì¤Æ¤¤¤ë¡£
146 ¤Ï POSIX.1-2001 ¤Çµ¬Äꤵ¤ì¤Æ¤¤¤ë¤¬¡¢C99 ¤Ë¤Ï¤Ê¤¤¡£
149 ¤ÏÈóɸ½à¤À¤¬¡¢¤¤¤¯¤Ä¤«¤Î¾¤Î¥·¥¹¥Æ¥à¤Ë¤â¸ºß¤¹¤ë¡£
153 .\" FIXME . this is as at glibc 2.8; check later if this bug is fixed
154 .\" Bug raised: http://sources.redhat.com/bugzilla/show_bug.cgi?id=6777
161 ¤¬ÀßÄꤵ¤ì¤ë¤Ù¤¤È¤µ¤ì¤Æ¤¤¤ë¡£