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 5 // 6 // This file is part of Open CASCADE Technology software library. 7 // 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. 13 // 14 // Alternatively, this file may be used under the terms of Open CASCADE 15 // commercial license or contractual agreement. 16 17 #ifndef _math_FunctionSetWithDerivatives_HeaderFile 18 #define _math_FunctionSetWithDerivatives_HeaderFile 19 20 #include <Standard.hxx> 21 #include <Standard_DefineAlloc.hxx> 22 #include <Standard_Handle.hxx> 23 24 #include <math_FunctionSet.hxx> 25 #include <Standard_Integer.hxx> 26 #include <Standard_Boolean.hxx> 27 #include <math_Vector.hxx> 28 class math_Matrix; 29 30 31 //! This abstract class describes the virtual functions associated 32 //! with a set of N Functions each of M independent variables. 33 class math_FunctionSetWithDerivatives : public math_FunctionSet 34 { 35 public: 36 37 DEFINE_STANDARD_ALLOC 38 39 40 //! Returns the number of variables of the function. 41 Standard_EXPORT virtual Standard_Integer NbVariables() const = 0; 42 43 //! Returns the number of equations of the function. 44 Standard_EXPORT virtual Standard_Integer NbEquations() const = 0; 45 46 //! Computes the values <F> of the Functions for the 47 //! variable <X>. 48 //! Returns True if the computation was done successfully, 49 //! False otherwise. 50 Standard_EXPORT virtual Standard_Boolean Value (const math_Vector& X, math_Vector& F) = 0; 51 52 //! Returns the values <D> of the derivatives for the 53 //! variable <X>. 54 //! Returns True if the computation was done successfully, 55 //! False otherwise. 56 Standard_EXPORT virtual Standard_Boolean Derivatives (const math_Vector& X, math_Matrix& D) = 0; 57 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, 61 //! False otherwise. 62 Standard_EXPORT virtual Standard_Boolean Values (const math_Vector& X, math_Vector& F, math_Matrix& D) = 0; 63 64 65 66 67 protected: 68 69 70 71 72 73 private: 74 75 76 77 78 79 }; 80 81 82 83 84 85 86 87 #endif // _math_FunctionSetWithDerivatives_HeaderFile 88