forked from johannesgerer/jburkardt-cpp
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathllsq.html
170 lines (141 loc) · 3.87 KB
/
llsq.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
<html>
<head>
<title>
LLSQ - Linear Least Squares Problem for Y = A*X+B
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
LLSQ <br> Linear Least Squares Problem for Y = A*X+B
</h1>
<hr>
<p>
<b>LLSQ</b>
is a C++ library which
solves the simple linear least squares problem of finding the formula
of a straight line y=a*x+b which minimizes the root-mean-square error
to a set of N data points.
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files described and made available on this
web page are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Languages:
</h3>
<p>
<b>LLSQ</b> is available in
<a href = "../../c_src/llsq/llsq.html">a C version</a> and
<a href = "../../cpp_src/llsq/llsq.html">a C++ version</a> and
<a href = "../../f77_src/llsq/llsq.html">a FORTRAN77 version</a> and
<a href = "../../f_src/llsq/llsq.html">a FORTRAN90 version</a> and
<a href = "../../m_src/llsq/llsq.html">a MATLAB version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../cpp_src/minpack/minpack.html">
MINPACK</a>,
a C++ library which
solves systems of nonlinear equations, or the least squares minimization of the
residual of a set of linear or nonlinear equations.
</p>
<p>
<a href = "../../cpp_src/qr_solve/qr_solve.html">
QR_SOLVE</a>,
a C++ library which
computes the least squares solution of a linear system A*x=b.
</p>
<p>
<a href = "../../cpp_src/test_approx/test_approx.html">
TEST_APPROX</a>,
a C++ library which
defines test problems for approximation,
provided as a set of (x,y) data.
</p>
<p>
<a href = "../../cpp_src/test_ls/test_ls.html">
TEST_LS</a>,
a C++ library which
implements linear least squares test problems of the form A*x=b.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
David Kahaner, Cleve Moler, Steven Nash,<br>
Numerical Methods and Software,<br>
Prentice Hall, 1989,<br>
ISBN: 0-13-627258-4,<br>
LC: TA345.K34.
</li>
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "llsq.cpp">llsq.cpp</a>, the source code.
</li>
<li>
<a href = "llsq.hpp">llsq.hpp</a>, the include file.
</li>
<li>
<a href = "llsq.sh">llsq.sh</a>,
BASH commands to compile the source code.
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "llsq_prb.cpp">llsq_prb.cpp</a>,
a sample calling program.
</li>
<li>
<a href = "llsq_prb.sh">llsq_prb.sh</a>,
BASH commands to compile and run the sample program.
</li>
<li>
<a href = "llsq_prb_output.txt">llsq_prb_output.txt</a>,
the output file.
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>LLSQ</b> solves a linear least squares problem matching a line to data.
</li>
<li>
<b>TIMESTAMP</b> prints the current YMDHMS date as a time stamp.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../cpp_src.html">
the C++ source codes</a>.
</p>
<hr>
<i>
Last revised on 17 July 2011.
</i>
<!-- John Burkardt -->
</body>
<!-- Initial HTML skeleton created by HTMLINDEX. -->
</html>