← Back to branch summary

~ubuntu-branches/ubuntu/hoary/scilab/hoary

« back to all changes in this revision

Viewing changes to man/eng/control/unobs.xml

  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2005-01-09 22:58:21 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20050109225821-473xr8vhgugxxx5j
Tags: 3.0-12
http://bugs.debian.org/255869
changed configure.in to build scilab's own malloc.o, closes: #255869

Show diffs side-by-side

added added

removed removed

Lines of Context:
man/eng/control/unobs.xml
 
1
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
 
2
<!DOCTYPE MAN SYSTEM "../../manrev.dtd">
 
3
<MAN>
 
4
  <LANGUAGE>eng</LANGUAGE>
 
5
  <TITLE>UNOBS</TITLE>
 
6
  <TYPE>Scilab Function</TYPE>
 
7
  <DATE>April 1993</DATE>
 
8
  <SHORT_DESCRIPTION name="unobs"> unobservable subspace</SHORT_DESCRIPTION>
 
9
  <CALLING_SEQUENCE>
 
10
    <CALLING_SEQUENCE_ITEM>[n,[U]]=unobs(A,C,[tol])   </CALLING_SEQUENCE_ITEM>
 
11
  </CALLING_SEQUENCE>
 
12
  <PARAM>
 
13
    <PARAM_INDENT>
 
14
      <PARAM_ITEM>
 
15
        <PARAM_NAME>A, C</PARAM_NAME>
 
16
        <PARAM_DESCRIPTION>
 
17
          <SP>: real matrices</SP>
 
18
        </PARAM_DESCRIPTION>
 
19
      </PARAM_ITEM>
 
20
      <PARAM_ITEM>
 
21
        <PARAM_NAME>tol</PARAM_NAME>
 
22
        <PARAM_DESCRIPTION>
 
23
          <SP>: tolerance used when evaluating ranks (QR factorizations).</SP>
 
24
        </PARAM_DESCRIPTION>
 
25
      </PARAM_ITEM>
 
26
      <PARAM_ITEM>
 
27
        <PARAM_NAME>n</PARAM_NAME>
 
28
        <PARAM_DESCRIPTION>
 
29
          <SP>: dimension of unobservable subspace.</SP>
 
30
        </PARAM_DESCRIPTION>
 
31
      </PARAM_ITEM>
 
32
      <PARAM_ITEM>
 
33
        <PARAM_NAME>U</PARAM_NAME>
 
34
        <PARAM_DESCRIPTION>
 
35
          <SP>: orthogonal change of basis which puts <VERB>(A,B)</VERB> in canonical form.</SP>
 
36
        </PARAM_DESCRIPTION>
 
37
      </PARAM_ITEM>
 
38
    </PARAM_INDENT>
 
39
  </PARAM>
 
40
  <DESCRIPTION>
 
41
    <P><VERB>[n,[U]]=unobs(A,C,[tol])</VERB> gives the unobservable form of an <VERB>(A,C)</VERB> 
 
42
    pair.
 
43
    The <VERB>n</VERB> first columns of <VERB>U</VERB> make a basis for the unobservable
 
44
    subspace.</P>
 
45
    <P>
 
46
    The <VERB>(2,1)</VERB> block (made of last <VERB>nx-n</VERB> rows and <VERB>n</VERB> first 
 
47
    columns) of <VERB>U'*A*U</VERB> is zero and and the <VERB>n</VERB> first columns 
 
48
    of <VERB>C*U</VERB> are zero.</P>
 
49
  </DESCRIPTION>
 
50
  <EXAMPLE>
 
51
<![CDATA[
 
52
A=diag([1,2,3]);C=[1,0,0];
 
53
unobs(A,C)
 
54
 ]]>
 
55
  </EXAMPLE>
 
56
  <SEE_ALSO>
 
57
    <SEE_ALSO_ITEM>
 
58
      <LINK>contr</LINK>
 
59
    </SEE_ALSO_ITEM>
 
60
    <SEE_ALSO_ITEM>
 
61
      <LINK>contrss</LINK>
 
62
    </SEE_ALSO_ITEM>
 
63
    <SEE_ALSO_ITEM>
 
64
      <LINK>canon</LINK>
 
65
    </SEE_ALSO_ITEM>
 
66
    <SEE_ALSO_ITEM>
 
67
      <LINK>cont_mat</LINK>
 
68
    </SEE_ALSO_ITEM>
 
69
    <SEE_ALSO_ITEM>
 
70
      <LINK>spantwo</LINK>
 
71
    </SEE_ALSO_ITEM>
 
72
    <SEE_ALSO_ITEM>
 
73
      <LINK>dt_ility</LINK>
 
74
    </SEE_ALSO_ITEM>
 
75
  </SEE_ALSO>
 
76
</MAN>