include/opencascade/MathUtils_Gauss.hxx

0001 // Copyright (c) 2025 OPEN CASCADE SAS
0002 //
0003 // This file is part of Open CASCADE Technology software library.
0004 //
0005 // This library is free software; you can redistribute it and/or modify it under
0006 // the terms of the GNU Lesser General Public License version 2.1 as published
0007 // by the Free Software Foundation, with special exception defined in the file
0008 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0009 // distribution for complete text of the license and disclaimer of any warranty.
0010 //
0011 // Alternatively, this file may be used under the terms of Open CASCADE
0012 // commercial license or contractual agreement.
0013
0014 #ifndef _MathUtils_Gauss_HeaderFile
0015 #define _MathUtils_Gauss_HeaderFile
0016
0017 #include <Standard_Macro.hxx>
0018 #include <math_Vector.hxx>
0019
0020 //! Modern math solver utilities.
0021 namespace MathUtils
0022 {
0023
0024 //! Get ordered Gauss-Legendre points and weights for given order.
0025 //! Points are returned in ascending order on [-1, 1].
0026 //! @param theOrder number of quadrature points (>= 1)
0027 //! @param[out] thePoints points array
0028 //! @param[out] theWeights weights array
0029 //! @return true if points/weights are available
0030 Standard_EXPORT bool GetGaussPointsAndWeights(int          theOrder,
0031                                               math_Vector& thePoints,
0032                                               math_Vector& theWeights);
0033
0034 } // namespace MathUtils
0035
0036 #endif // _MathUtils_Gauss_HeaderFile