.TH "lib/cplex/cpow.c" 3 "Tue Jan 24 2017" "Version 1.6.2" "amath" \" -*- nroff -*-
.ad l
.nh
.SH NAME
lib/cplex/cpow.c \- 
.SH SYNOPSIS
.br
.PP
\fC#include 'prim\&.h'\fP
.br
\fC#include 'math\&.h'\fP
.br
\fC#include 'complex\&.h'\fP
.br

.SS "Functions"

.in +1c
.ti -1c
.RI "\fBcomplex\fP \fBcpow\fP (\fBcomplex\fP a, \fBcomplex\fP z)"
.br
.RI "\fIComplex number raised to a power\&. \fP"
.in -1c
.SH "Function Documentation"
.PP 
.SS "\fBcomplex\fP cpow (\fBcomplex\fP a, \fBcomplex\fP z)"

.PP
Complex number raised to a power\&. 
.PP
\fBVersion:\fP
.RS 4
1\&.1 
.RE
.PP
\fBDate:\fP
.RS 4
2007/08/20 
.RE
.PP

.PP
Definition at line 46 of file cpow\&.c\&.
.PP
References atan2(), cabs(), cimag(), cos(), cpack(), creal(), exp(), pow(), and sin()\&.
.PP
Referenced by ComplexNumber::Raise()\&.
.PP
.nf
47 {
48     complex w;
49     double x, y, r, theta, absa, arga;
50 
51     x = creal(z);
52     y = cimag(z);
53     absa = cabs(a);
54     if (absa == 0\&.0) {
55         return cpack(0\&.0, + 0\&.0);
56     }
57     arga = atan2(cimag(a), creal(a));
58 
59     r = pow(absa, x);
60     theta = x * arga;
61     if (y != 0\&.0) {
62         r = r * exp(-y * arga);
63         theta = theta + y * log(absa);
64     }
65 
66     w = cpack(r * cos(theta), r * sin(theta));
67     return w;
68 }
.fi
.SH "Author"
.PP 
Generated automatically by Doxygen for amath from the source code\&.