Edinburgh Speech Tools
2.4-release
All
Classes
Functions
Variables
Typedefs
Enumerations
Enumerator
Friends
Pages
EST_Complex.cc
1
/*************************************************************************/
2
/* */
3
/* Centre for Speech Technology Research */
4
/* University of Edinburgh, UK */
5
/* Copyright (c) 1996 */
6
/* All Rights Reserved. */
7
/* */
8
/* Permission is hereby granted, free of charge, to use and distribute */
9
/* this software and its documentation without restriction, including */
10
/* without limitation the rights to use, copy, modify, merge, publish, */
11
/* distribute, sublicense, and/or sell copies of this work, and to */
12
/* permit persons to whom this work is furnished to do so, subject to */
13
/* the following conditions: */
14
/* 1. The code must retain the above copyright notice, this list of */
15
/* conditions and the following disclaimer. */
16
/* 2. Any modifications must be clearly marked as such. */
17
/* 3. Original authors' names are not deleted. */
18
/* 4. The authors' names are not used to endorse or promote products */
19
/* derived from this software without specific prior written */
20
/* permission. */
21
/* */
22
/* THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK */
23
/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
24
/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
25
/* SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE */
26
/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
27
/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
28
/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
29
/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
30
/* THIS SOFTWARE. */
31
/* */
32
/*************************************************************************/
33
/* Author : Paul Taylor */
34
/* Date : December 1997 */
35
/*-----------------------------------------------------------------------*/
36
/* */
37
/*=======================================================================*/
38
39
#include "EST_Complex.h"
40
41
42
// Addition
43
44
EST_Complex
operator + (
const
EST_Complex
& z1,
const
EST_Complex
&z2)
45
{
46
return
EST_Complex
(z1.r + z2.r, z1.i + z2.i);
47
}
48
49
EST_Complex
operator + (
const
EST_Complex
& z,
float
x)
50
{
51
return
EST_Complex
(z.r + x, z.i);
52
}
53
54
EST_Complex
operator + (
float
x,
const
EST_Complex
&z)
55
{
56
return
EST_Complex
(z.r + x, z.i);
57
}
58
59
// Subtraction
60
61
EST_Complex
operator - (
const
EST_Complex
& z1,
const
EST_Complex
&z2)
62
{
63
return
EST_Complex
(z1.r - z2.r, z1.i - z2.i);
64
}
65
66
EST_Complex
operator - (
const
EST_Complex
& z,
float
x)
67
{
68
return
EST_Complex
(z.r -x, z.i);
69
}
70
71
EST_Complex
operator - (
float
x,
const
EST_Complex
&z)
72
{
73
return
EST_Complex
(x - z.r, - z.i);
74
}
75
76
// Multiplication
77
78
EST_Complex
operator * (
const
EST_Complex
& z1,
const
EST_Complex
&z2)
79
{
80
return
EST_Complex
((z1.r * z2.r) - (z1.i * z2.i), (z1.r * z2.i) + (z1.i * z2.r));
81
}
82
83
EST_Complex
operator * (
const
EST_Complex
& z,
float
x)
84
{
85
return
EST_Complex
(z.r * x, z.i *x);
86
}
87
88
EST_Complex
operator * (
float
x,
const
EST_Complex
&z)
89
{
90
return
EST_Complex
(z.r * x, z.i *x);
91
}
92
93
// Division
94
95
EST_Complex
operator / (
const
EST_Complex
& z1,
const
EST_Complex
&z2)
96
{
97
double
m = z1.
mag
();
98
99
EST_Complex
inv(z1.r / m, z1.i /m);
100
101
return
inv * z2;
102
}
103
104
EST_Complex
operator / (
const
EST_Complex
& z,
float
x)
105
{
106
return
EST_Complex
(z.r / x, z.i / x);
107
}
108
109
EST_Complex
operator / (
float
x,
const
EST_Complex
&z)
110
{
111
EST_Complex
a(x, 0.0);
112
return
(z / a);
113
}
114
115
base_class
EST_Complex.cc
Generated on Wed Dec 24 2014 09:16:34 for Edinburgh Speech Tools by
1.8.3.1