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72 lines
2.5 KiB
Plaintext
Executable File
72 lines
2.5 KiB
Plaintext
Executable File
-- Created on: 2005-12-15
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-- Created by: Julia GERASIMOVA
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-- Copyright (c) 2005-2012 OPEN CASCADE SAS
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--
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-- The content of this file is subject to the Open CASCADE Technology Public
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-- License Version 6.5 (the "License"). You may not use the content of this file
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-- except in compliance with the License. Please obtain a copy of the License
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-- at http://www.opencascade.org and read it completely before using this file.
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--
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-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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--
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-- The Original Code and all software distributed under the License is
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-- distributed on an "AS IS" basis, without warranty of any kind, and the
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-- Initial Developer hereby disclaims all such warranties, including without
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-- limitation, any warranties of merchantability, fitness for a particular
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-- purpose or non-infringement. Please see the License for the specific terms
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-- and conditions governing the rights and limitations under the License.
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class EigenValuesSearcher from math
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---Purpose: This class finds eigen values and vectors of
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-- real symmetric tridiagonal matrix
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uses
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Array1OfReal from TColStd,
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HArray1OfReal from TColStd,
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HArray2OfReal from TColStd,
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Vector from math
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raises
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NotDone from StdFail
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is
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Create(Diagonal : Array1OfReal from TColStd;
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Subdiagonal : Array1OfReal from TColStd)
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returns EigenValuesSearcher
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raises NotDone; -- if length(Subdiagonal) != length(Diagonal)-1
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IsDone(me)
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---Purpose: Returns Standard_True if computation is performed
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-- successfully.
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returns Boolean from Standard;
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Dimension(me)
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---Purpose: Returns the dimension of matrix
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returns Integer from Standard;
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EigenValue(me; Index : Integer from Standard)
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---Purpose: Returns the Index_th eigen value of matrix
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-- Index must be in [1, Dimension()]
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returns Real from Standard;
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EigenVector(me; Index : Integer from Standard)
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---Purpose: Returns the Index_th eigen vector of matrix
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-- Index must be in [1, Dimension()]
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returns Vector from math;
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fields
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myDiagonal : HArray1OfReal from TColStd;
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mySubdiagonal : HArray1OfReal from TColStd;
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myIsDone : Boolean from Standard;
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myN : Integer from Standard;
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myEigenValues : HArray1OfReal from TColStd;
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myEigenVectors : HArray2OfReal from TColStd;
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end EigenValuesSearcher;
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