quadrature_simpson_1D.C

Go to the documentation of this file.

// The libMesh Finite Element Library.
// Copyright (C) 2002-2026 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 
 
// Local includes
#include "libmesh/quadrature_simpson.h"
 
namespace libMesh
{
 
void QSimpson::init_1D()
{
  _points.resize(3);
  _weights.resize(3);
 
  _points[0](0) = -1.;
  _points[1](0) =  0.;
  _points[2](0) =  1.;
 
  _weights[0] = Real(1)/3;
  _weights[1] = Real(4)/3;
  _weights[2] = Real(1)/3;
}
 
} // namespace libMesh