1 -- Created on: 1991-05-13
2 -- Created by: Laurent Painnot
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.
17 deferred class FunctionWithDerivative from math
19 -- This abstract class describes the virtual functions associated with
20 -- a function of a single variable for which the first derivative is
27 Delete(me:out) is virtual;
28 ---C++: alias "Standard_EXPORT virtual ~math_FunctionWithDerivative(){Delete();}"
30 Value(me: in out; X: Real; F: out Real)
31 ---Purpose: Computes the value <F>of the function for the variable <X>.
32 -- Returns True if the calculation were successfully done,
38 Derivative(me: in out; X: Real; D: out Real)
39 ---Purpose: Computes the derivative <D> of the function
40 -- for the variable <X>.
41 -- Returns True if the calculation were successfully done,
47 Values(me: in out; X: Real; F, D: out Real)
48 ---Purpose: Computes the value <F> and the derivative <D> of the
49 -- function for the variable <X>.
50 -- Returns True if the calculation were successfully done,
56 end FunctionWithDerivative;