1 -- Created on: 1991-01-14
2 -- Created by: Arnaud BOUZY
3 -- Copyright (c) 1991-1999 Matra Datavision
4 -- Copyright (c) 1999-2014 OPEN CASCADE SAS
6 -- This file is part of Open CASCADE Technology software library.
8 -- This library is free software; you can redistribute it and/or modify it under
9 -- the terms of the GNU Lesser General Public License version 2.1 as published
10 -- by the Free Software Foundation, with special exception defined in the file
11 -- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 -- distribution for complete text of the license and disclaimer of any warranty.
14 -- Alternatively, this file may be used under the terms of Open CASCADE
15 -- commercial license or contractual agreement.
19 inherits SingleRelation from Expr
21 uses GeneralExpression from Expr,
22 GeneralRelation from Expr,
23 AsciiString from TCollection
25 raises NumericError from Standard
29 Create(exp1 : GeneralExpression ; exp2 : GeneralExpression)
30 ---Purpose: Creates the relation <exp1> = <exp2>.
37 ---Purpose: returns a GeneralRelation after replacement of
38 -- NamedUnknowns by an associated expression and after
39 -- values computation.
40 returns GeneralRelation
43 Simplify(me : mutable)
44 ---Purpose: Replaces NamedUnknowns by an associated expressions
45 -- and computes values in <me>.
49 ---Purpose: Returns a copy of <me> having the same unknowns and functions.
53 ---Purpose: returns a string representing <me> in a readable way.