1 .\" Copyright 2002 Walter Harms(walter.harms@informatik.uni-oldenburg.de)
2 .\" Distributed under GPL
4 .\" Japanese Version Copyright (c) 2003 Akihiro MOTOKI
5 .\" all rights reserved.
6 .\" Translated Thu Jul 24 00:26:52 JST 2003
7 .\" by Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
9 .\"WORD: hyperbolic ÁжÊ(Àþ¤Î)
10 .\"WORD: arc sine µÕÀµ¸¹
11 .\"WORD: arc cosine µÕ;¸¹
12 .\"WORD: arc tangent µÕÀµÀÜ
13 .\"WORD: real part ¼ÂÉô
14 .\"WORD: imaginary part µõÉô
16 .TH CACOSH 3 2008-08-06 "" "Linux Programmer's Manual"
19 .\"O cacosh, cacoshf, cacoshl \- complex arc hyperbolic cosine
20 cacosh, cacoshf, cacoshl \- Ê£ÁÇ¿ô¤ÎµÕÁжÊÀþ;¸¹ (arc hyperbolic cosine)
23 .B #include <complex.h>
25 .BI "double complex cacosh(double complex " z );
27 .BI "float complex cacoshf(float complex " z );
29 .BI "long double complex cacoshl(long double complex " z );
31 .\"O Link with \fI\-lm\fP.
32 \fI\-lm\fP ¤Ç¥ê¥ó¥¯¤¹¤ë¡£
37 .\"O function calculates the complex arc hyperpolic cosine of
39 .\"O If \fIy\ =\ cacosh(z)\fP, then \fIz\ =\ ccosh(y)\fP.
40 .\"O The imaginary part of
42 .\"O is chosen in the interval [\-pi,pi].
45 .\"O is chosen nonnegative.
49 ¤ÎµÕÁжÊÀþ;¸¹ (arc hyperbolic cosine) ¤ò·×»»¤¹¤ë¡£
50 \fIy\ =\ cacosh(z)\fP ¤Ê¤é¤Ð¡¢
51 \fIz\ =\ ccosh(y)\fP ¤¬À®Î©¤¹¤ë¡£
53 ¤ÎµõÉô¤ÎÃͤ϶è´Ö [\-pi,pi] ¤«¤éÁªÂò¤µ¤ì¡¢
55 ¤Î¼ÂÉô¤ÎÃͤÏÈóÉé¤ÎÃͤ¬ÁªÂò¤µ¤ì¤ë¡£
61 cacosh(z) = (0.5) * clog((1 + z) / (1 \- z))
65 .\"O These functions first appeared in glibc in version 2.1.
66 ¤³¤ì¤é¤Î´Ø¿ô¤Ï glibc ¥Ð¡¼¥¸¥ç¥ó 2.1 ¤Ç½é¤á¤ÆÅо줷¤¿¡£
67 .\"O .SH "CONFORMING TO"