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 Wed Jul 23 05:24:21 JST 2003
7 .\" by Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
9 .\"WORD: arc sine µÕÀµ¸¹
10 .\"WORD: arc cosine µÕ;¸¹
11 .\"WORD: arc tangent µÕÀµÀÜ
12 .\"WORD: real part ¼ÂÉô
13 .\"WORD: imaginary part µõÉô
15 .TH CACOS 3 2008-08-06 "" "Linux Programmer's Manual"
17 .\"O cacos, cacosf, cacosl \- complex arc cosine
19 cacos, cacosf, cacosl \- Ê£ÁÇ¿ô¤ÎµÕ;¸¹ (arc cosine)
22 .B #include <complex.h>
24 .BI "double complex cacos(double complex " z );
26 .BI "float complex cacosf(float complex " z );
28 .BI "long double complex cacosl(long double complex " z );
30 .\"O Link with \fI\-lm\fP.
31 \fI\-lm\fP ¤Ç¥ê¥ó¥¯¤¹¤ë¡£
36 .\"O function calculates the complex arc cosine of
38 .\"O If \fIy\ =\ cacos(z)\fP, then \fIz\ =\ ccos(y)\fP.
41 .\"O is chosen in the interval [0,pi].
45 ¤ÎµÕ;¸¹ (arc cosine) ¤ò·×»»¤¹¤ë¡£
46 \fIy\ =\ cacos(z)\fP ¤Ê¤é¤Ð¡¢ \fIz\ =\ ccos(y)\fP ¤¬À®Î©¤¹¤ë¡£
48 ¤Î¼ÂÉô¤ÎÃͤ϶è´Ö [0,pi] ¤«¤éÁªÂò¤µ¤ì¤ë¡£
54 cacos(z) = \-i clog(z + csqrt(z * z \- 1))
58 .\"O These functions first appeared in glibc in version 2.1.
59 ¤³¤ì¤é¤Î´Ø¿ô¤Ï glibc ¥Ð¡¼¥¸¥ç¥ó 2.1 ¤Ç½é¤á¤ÆÅо줷¤¿¡£
60 .\"O .SH "CONFORMING TO"