/usr/include/dolfin/math/Legendre.h is in libdolfin1.3-dev 1.3.0+dfsg-2.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | // Copyright (C) 2011 Garth N. Wells
//
// This file is part of DOLFIN.
//
// DOLFIN 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 3 of the License, or
// (at your option) any later version.
//
// DOLFIN 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 DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// First added: 2011-06-01
// Last changed:
#ifndef __LEGENDRE_H
#define __LEGENDRE_H
#include <cstddef>
namespace dolfin
{
/// Interface for computing Legendre polynomials via Boost.
class Legendre
{
public:
/// Evaluate polynomial of order n at point x
static double eval(std::size_t n, double x);
/// Evaluate first derivative of polynomial of order n at point x
static double ddx(std::size_t n, double x);
/// Evaluate second derivative of polynomial of order n at point x
static double d2dx(std::size_t n, double x);
};
}
#endif
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