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/////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003-2011 by The University of Queensland //
// Earth Systems Science Computational Centre (ESSCC) //
// http://www.uq.edu.au/esscc //
// //
// Primary Business: Brisbane, Queensland, Australia //
// Licensed under the Open Software License version 3.0 //
// http://www.opensource.org/licenses/osl-3.0.php //
// //
/////////////////////////////////////////////////////////////
#ifndef __CUBE_EQ_H
#define __CUBE_EQ_H
// --- STL includes ---
#include <set>
using std::set;
/*!
\class CubicEquation
\brief A class for a cubic equation. Used for eigenvalue calculation on 3D matrices
\author Steffen Abe
$Revision$
$Date$
*/
class CubicEquation
{
private:
double m_a,m_b,m_c;
double bisect(double,double,double);
double f(double);
public:
CubicEquation(double,double,double);
set<double> getRealRoots(double);
};
#endif //__CUBE_EQ_H
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