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-- File: FEmTool_SparseMatrix.cdl
-- Created: Wed Oct 29 16:53:14 1997
-- Author: Roman BORISOV
-- <rbv@velox.nnov.matra-dtv.fr>
---Copyright: Matra Datavision 1997
deferred class SparseMatrix from FEmTool inherits TShared from MMgt
---Purpose: Sparse Matrix definition
uses
Vector from math
raises
NotDone from StdFail
is
Init(me: mutable; Value : Real)
is deferred;
ChangeValue(me: mutable; I, J : Integer)
---C++: return &
returns Real is deferred;
Decompose(me : mutable)
---Purpose: To make a Factorization of <me>
returns Boolean
is deferred;
Solve(me; B : Vector; X : in out Vector)
---Purpose: Direct Solve of AX = B
raises NotDone from StdFail -- if <me> is not decomposed
is deferred;
Prepare(me : mutable)
---Purpose: Make Preparation to iterative solve
returns Boolean
is deferred;
Solve(me; B : Vector;
Init : Vector;
X : out Vector;
Residual : out Vector;
Tolerance : Real = 1.0e-8;
NbIterations: Integer = 50)
---Purpose: Iterative solve of AX = B
raises NotDone from StdFail -- if <me> is not prepared;
is deferred;
Multiplied(me; X: Vector; MX : in out Vector)
---Purpose: returns the product of a SparseMatrix by a vector.
-- An exception is raised if the dimensions are different
is deferred;
RowNumber(me)
---Purpose: returns the row range of a matrix.
returns Integer
is deferred;
ColNumber(me)
---Purpose: returns the column range of the matrix.
returns Integer
is deferred;
end SparseMatrix;
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