1 -- Created on: 1997-10-29
2 -- Created by: Roman BORISOV
3 -- Copyright (c) 1997-1999 Matra Datavision
4 -- Copyright (c) 1999-2012 OPEN CASCADE SAS
6 -- The content of this file is subject to the Open CASCADE Technology Public
7 -- License Version 6.5 (the "License"). You may not use the content of this file
8 -- except in compliance with the License. Please obtain a copy of the License
9 -- at http://www.opencascade.org and read it completely before using this file.
11 -- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
12 -- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
14 -- The Original Code and all software distributed under the License is
15 -- distributed on an "AS IS" basis, without warranty of any kind, and the
16 -- Initial Developer hereby disclaims all such warranties, including without
17 -- limitation, any warranties of merchantability, fitness for a particular
18 -- purpose or non-infringement. Please see the License for the specific terms
19 -- and conditions governing the rights and limitations under the License.
22 deferred class SparseMatrix from FEmTool inherits TShared from MMgt
24 ---Purpose: Sparse Matrix definition
33 Init(me: mutable; Value : Real)
36 ChangeValue(me: mutable; I, J : Integer)
38 returns Real is deferred;
40 Decompose(me : mutable)
41 ---Purpose: To make a Factorization of <me>
45 Solve(me; B : Vector; X : in out Vector)
46 ---Purpose: Direct Solve of AX = B
47 raises NotDone from StdFail -- if <me> is not decomposed
51 ---Purpose: Make Preparation to iterative solve
58 Residual : out Vector;
59 Tolerance : Real = 1.0e-8;
60 NbIterations: Integer = 50)
61 ---Purpose: Iterative solve of AX = B
62 raises NotDone from StdFail -- if <me> is not prepared;
66 Multiplied(me; X: Vector; MX : in out Vector)
67 ---Purpose: returns the product of a SparseMatrix by a vector.
68 -- An exception is raised if the dimensions are different
72 ---Purpose: returns the row range of a matrix.
78 ---Purpose: returns the column range of the matrix.