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 2003-07-24, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
7 .\" Updated 2005-10-02, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
9 .\"WORD: argument (¶ËºÂɸ¤Î)ÊгÑ
10 .\"WORD: coordinates ºÂɸ
11 .\"WORD: rectangular coordinates ľ¸òºÂɸ
12 .\"WORD: polar coordinates ¶ËºÂɸ
14 .TH CARG 3 2008-08-06 "" "Linux Programmer's Manual"
16 carg, cargf, cargl \- Ê£ÁÇ¿ô¤ÎÊгѤò·×»»¤¹¤ë
18 .B #include <complex.h>
20 .BI "double carg(double complex " z ");"
22 .BI "float cargf(float complex " z ");"
24 .BI "long double cargl(long double complex " z ");"
26 \fI\-lm\fP ¤Ç¥ê¥ó¥¯¤¹¤ë¡£
28 Ê£ÁÇ¿ô¤Ï 2¤Ä¤Î¼Â¿ôÃͤ«¤é¤Ê¤ëºÂɸ¤Çɽ¤¹¤³¤È¤¬¤Ç¤¤ë¡£
29 ľ¸òºÂɸ¤ò»È¤¦¤È¡¢°Ê²¼¤Î¤è¤¦¤Ë½ñ¤¯¤³¤È¤¬¤Ç¤¤ë¡£
35 ¤³¤³¤Ç¡¢\fIx\ =\ creal(z)\fP, \fIy\ =\ cimag(z)\fP ¤Ç¤¢¤ë¡£
37 ¤Þ¤¿¡¢¶ËºÂɸ¤ò»È¤¦¤È¡¢°Ê²¼¤Î¤è¤¦¤Ë½ñ¤¯¤³¤È¤¬¤Ç¤¤ë¡£
44 \fIr\ =\ cabs(z)\fP ¤Ï¡ÖȾ·Â¡×¡¢¡Ö·¸¿ô¡×¤Ç¤¢¤ê¡¢
45 \fIz\fP ¤ÎÀäÂÐÃͤǤ¢¤ë¡£
46 \fIa\ =\ carg(z)\fP ¤Ï¡Ö°ÌÁê³Ñ¡×¤Ç¤¢¤ê¡¢
47 \fIz\fP ¤ÎÊгѤǤ¢¤ë¡£
52 tan(carg(z)) = cimag(z) / creal(z)
55 ÊÖ¤êÃÍ¤Ï [\-pi,pi] ¤ÎÈϰϤǤ¢¤ë¡£
57 ¤³¤ì¤é¤Î´Ø¿ô¤Ï glibc ¥Ð¡¼¥¸¥ç¥ó 2.1 ¤Ç½é¤á¤ÆÅо줷¤¿¡£