50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
/* ***********************************************************************
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//
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// Copyright (C) 2025 -- The 4D-STAR Collaboration
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// File Author: Emily Boudreaux
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// Last Modified: March 19, 2025
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//
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// 4DSSE is free software; you can use it and/or modify
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// it under the terms and restrictions the GNU General Library Public
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// License version 3 (GPLv3) as published by the Free Software Foundation.
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//
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// 4DSSE is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public License
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// along with this software; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// *********************************************************************** */
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#include "mfem.hpp"
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#include "polyCoeff.h"
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namespace polycoeff{
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double nonlinearSourceCoeff(const mfem::Vector &x)
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{
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return 1;
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// double r = x(0)*x(0) + x(1)*x(1) + x(2)*x(2);
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// return std::pow(r, 2);
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}
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void diffusionCoeff(const mfem::Vector &x, mfem::Vector &v)
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{
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v.SetSize(3);
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v = -1;
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// double r = x(0)*x(0) + x(1)*x(1) + x(2)*x(2);
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// v = -std::pow(r, 2);
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}
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double x1(const double n)
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{
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double r = 0;
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for (int i = 0; i < x1InterpCoeff::numTerms; i++) {
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r += x1InterpCoeff::coeff[i] * std::pow(n, x1InterpCoeff::power[i]);
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}
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return r;
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}
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} |