.\" <s>Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)</s>
.\" Distributed under GPL
.\"
.\" Japanese Version <s>Copyright (c) 2003  Akihiro MOTOKI</s>
.\"         all rights reserved.
.\" Translated Thu Jul 24 00:47:23 JST 2003
.\"         by Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\"
.\"WORD:	square root	ʿ
.\"WORD:	branch cut	ʬ
.\"
.TH CSQRT 3 2008-08-11 "" "Linux Programmer's Manual"
.SH ̾
csqrt, csqrtf, csqrtl \- ʣǿʿ
.SH 
.B #include <complex.h>
.sp
.BI "double complex csqrt(double complex " z ");"
.br
.BI "float complex csqrtf(float complex " z ");"
.br
.BI "long double complex csqrtl(long double complex " z ");"
.sp
\fI\-lm\fP ǥ󥯤롣
.SH 
Ϳ줿ʣǿʿ׻롣
âʿΤ¿֤ͤ
¼ʬ˱äʬ (branch cut) 롣
(Ĥޤꡢ \fIeps\fP 򾮤μ¿Ȥ硢
\fIcsqrt(\-1+eps*I)\fP  I ˶դƤ
 \fIcsqrt(\-1\-eps*I)\fP  \-I ˶դƤ
ȤȤǤ롣)
.SH С
δؿ glibc С 2.1 ǽо줷
.SH 
C99.
.SH Ϣ
.BR cabs (3),
.BR cexp (3),
.BR complex (7)
