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 #ifndef _math_FunctionSetWithDerivatives_HeaderFile
18 #define _math_FunctionSetWithDerivatives_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <math_FunctionSet.hxx>
25 #include <Standard_Integer.hxx>
26 #include <Standard_Boolean.hxx>
27 #include <math_Vector.hxx>
31 //! This abstract class describes the virtual functions associated
32 //! with a set of N Functions each of M independant variables.
33 class math_FunctionSetWithDerivatives : public math_FunctionSet
40 //! Returns the number of variables of the function.
41 Standard_EXPORT virtual Standard_Integer NbVariables() const = 0;
43 //! Returns the number of equations of the function.
44 Standard_EXPORT virtual Standard_Integer NbEquations() const = 0;
46 //! Computes the values <F> of the Functions for the
48 //! Returns True if the computation was done successfully,
50 Standard_EXPORT virtual Standard_Boolean Value (const math_Vector& X, math_Vector& F) = 0;
52 //! Returns the values <D> of the derivatives for the
54 //! Returns True if the computation was done successfully,
56 Standard_EXPORT virtual Standard_Boolean Derivatives (const math_Vector& X, math_Matrix& D) = 0;
58 //! returns the values <F> of the functions and the derivatives
59 //! <D> for the variable <X>.
60 //! Returns True if the computation was done successfully,
62 Standard_EXPORT virtual Standard_Boolean Values (const math_Vector& X, math_Vector& F, math_Matrix& D) = 0;
87 #endif // _math_FunctionSetWithDerivatives_HeaderFile