1 // Created on: 1991-05-14
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_GaussMultipleIntegration_HeaderFile
18 #define _math_GaussMultipleIntegration_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Real.hxx>
25 #include <Standard_Boolean.hxx>
26 #include <math_Vector.hxx>
27 #include <math_IntegerVector.hxx>
28 #include <Standard_OStream.hxx>
29 class StdFail_NotDone;
30 class math_MultipleVarFunction;
34 //! This class implements the integration of a function of multiple
35 //! variables between the parameter bounds Lower[a..b] and Upper[a..b].
36 //! Warning: Each element of Order must be inferior or equal to 61.
37 class math_GaussMultipleIntegration
45 //! The Gauss-Legendre integration with Order = points of
46 //! integration for each unknow, is done on the function F
47 //! between the bounds Lower and Upper.
48 Standard_EXPORT math_GaussMultipleIntegration(math_MultipleVarFunction& F, const math_Vector& Lower, const math_Vector& Upper, const math_IntegerVector& Order);
50 //! returns True if all has been correctly done.
51 Standard_Boolean IsDone() const;
53 //! returns the value of the integral.
54 Standard_Real Value() const;
56 //! Prints information on the current state of the object.
57 Standard_EXPORT void Dump (Standard_OStream& o) const;
73 Standard_Boolean Done;
79 #include <math_GaussMultipleIntegration.lxx>
85 #endif // _math_GaussMultipleIntegration_HeaderFile