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eigenvalues.h
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1/*
2 * Copyright (c) 2010-2015: G-CSC, Goethe University Frankfurt
3 * Author: Sebastian Reiter
4 *
5 * This file is part of UG4.
6 *
7 * UG4 is free software: you can redistribute it and/or modify it under the
8 * terms of the GNU Lesser General Public License version 3 (as published by the
9 * Free Software Foundation) with the following additional attribution
10 * requirements (according to LGPL/GPL v3 §7):
11 *
12 * (1) The following notice must be displayed in the Appropriate Legal Notices
13 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
14 *
15 * (2) The following notice must be displayed at a prominent place in the
16 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
17 *
18 * (3) The following bibliography is recommended for citation and must be
19 * preserved in all covered files:
20 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
21 * parallel geometric multigrid solver on hierarchically distributed grids.
22 * Computing and visualization in science 16, 4 (2013), 151-164"
23 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
24 * flexible software system for simulating pde based models on high performance
25 * computers. Computing and visualization in science 16, 4 (2013), 165-179"
26 *
27 * This program is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU Lesser General Public License for more details.
31 */
32
33#ifndef __H__UG_MATH__EIGENVALUES__
34#define __H__UG_MATH__EIGENVALUES__
35
36#include "../ugmath_types.h"
37
38namespace ug
39{
40
43
44bool CalculateEigenvalues(const ug::matrix33& mat, number& lambdaMinOut,
45 number& lambdaMedOut, number& lambdaMaxOut,
46 ug::vector3& evMinOut, ug::vector3& evMedOut,
47 ug::vector3& evMaxOut);
48
49// end group ugbase_math
51
52}// end of namespace
53
54#endif
A class for fixed size, dense matrices.
Definition math_matrix.h:63
double number
Definition types.h:124
bool CalculateEigenvalues(const ug::matrix33 &mat, number &lambdaMinOut, number &lambdaMedOut, number &lambdaMaxOut, ug::vector3 &evMinOut, ug::vector3 &evMedOut, ug::vector3 &evMaxOut)
Definition eigenvalues.cpp:52
the ug namespace