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76 lines
1.4 KiB
Plaintext
76 lines
1.4 KiB
Plaintext
.TH "lib/cplex/cpow.c" 3 "Tue Jan 24 2017" "Version 1.6.2" "amath" \" -*- nroff -*-
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.ad l
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.nh
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.SH NAME
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lib/cplex/cpow.c \-
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.SH SYNOPSIS
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.br
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.PP
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\fC#include 'prim\&.h'\fP
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.br
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\fC#include 'math\&.h'\fP
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.br
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\fC#include 'complex\&.h'\fP
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.br
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.SS "Functions"
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.in +1c
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.ti -1c
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.RI "\fBcomplex\fP \fBcpow\fP (\fBcomplex\fP a, \fBcomplex\fP z)"
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.br
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.RI "\fIComplex number raised to a power\&. \fP"
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.in -1c
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.SH "Function Documentation"
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.PP
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.SS "\fBcomplex\fP cpow (\fBcomplex\fP a, \fBcomplex\fP z)"
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.PP
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Complex number raised to a power\&.
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.PP
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\fBVersion:\fP
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.RS 4
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1\&.1
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.RE
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.PP
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\fBDate:\fP
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.RS 4
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2007/08/20
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.RE
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.PP
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.PP
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Definition at line 46 of file cpow\&.c\&.
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.PP
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References atan2(), cabs(), cimag(), cos(), cpack(), creal(), exp(), pow(), and sin()\&.
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.PP
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Referenced by ComplexNumber::Raise()\&.
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.PP
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.nf
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47 {
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48 complex w;
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49 double x, y, r, theta, absa, arga;
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50
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51 x = creal(z);
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52 y = cimag(z);
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53 absa = cabs(a);
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54 if (absa == 0\&.0) {
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55 return cpack(0\&.0, + 0\&.0);
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56 }
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57 arga = atan2(cimag(a), creal(a));
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58
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59 r = pow(absa, x);
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60 theta = x * arga;
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61 if (y != 0\&.0) {
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62 r = r * exp(-y * arga);
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63 theta = theta + y * log(absa);
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64 }
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65
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66 w = cpack(r * cos(theta), r * sin(theta));
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67 return w;
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68 }
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.fi
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.SH "Author"
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.PP
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Generated automatically by Doxygen for amath from the source code\&.
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