blob: 09bb414d79c5d022cdc394dd15c9381b5346475d (
plain)
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
|
-- File: math_EigenValuesSearcher.cdl
-- Created: Thu Dec 15 17:12:52 2005
-- Author: Julia GERASIMOVA
-- <jgv@clubox>
---Copyright: Matra Datavision 2005
class EigenValuesSearcher from math
---Purpose: This class finds eigen values and vectors of
-- real symmetric tridiagonal matrix
uses
Array1OfReal from TColStd,
HArray1OfReal from TColStd,
HArray2OfReal from TColStd,
Vector from math
raises
NotDone from StdFail
is
Create(Diagonal : Array1OfReal from TColStd;
Subdiagonal : Array1OfReal from TColStd)
returns EigenValuesSearcher
raises NotDone; -- if length(Subdiagonal) != length(Diagonal)-1
IsDone(me)
---Purpose: Returns Standard_True if computation is performed
-- successfully.
returns Boolean from Standard;
Dimension(me)
---Purpose: Returns the dimension of matrix
returns Integer from Standard;
EigenValue(me; Index : Integer from Standard)
---Purpose: Returns the Index_th eigen value of matrix
-- Index must be in [1, Dimension()]
returns Real from Standard;
EigenVector(me; Index : Integer from Standard)
---Purpose: Returns the Index_th eigen vector of matrix
-- Index must be in [1, Dimension()]
returns Vector from math;
fields
myDiagonal : HArray1OfReal from TColStd;
mySubdiagonal : HArray1OfReal from TColStd;
myIsDone : Boolean from Standard;
myN : Integer from Standard;
myEigenValues : HArray1OfReal from TColStd;
myEigenVectors : HArray2OfReal from TColStd;
end EigenValuesSearcher;
|
