cube_eq.h

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//                                                         //
// Copyright (c) 2003-2017 by The University of Queensland //
// Centre for Geoscience Computing                         //
// http://earth.uq.edu.au/centre-geoscience-computing      //
//                                                         //
// Primary Business: Brisbane, Queensland, Australia       //
// Licensed under the Open Software License version 3.0    //
// http://www.apache.org/licenses/LICENSE-2.0              //
//                                                         //
 
#ifndef __CUBE_EQ_H
#define __CUBE_EQ_H
 
 
// --- STL includes ---
#include <set>
 
using std::set;
 
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