ESyS-Particle  4.0.1
cube_eq.h
00001 
00002 //                                                         //
00003 // Copyright (c) 2003-2011 by The University of Queensland //
00004 // Earth Systems Science Computational Centre (ESSCC)      //
00005 // http://www.uq.edu.au/esscc                              //
00006 //                                                         //
00007 // Primary Business: Brisbane, Queensland, Australia       //
00008 // Licensed under the Open Software License version 3.0    //
00009 // http://www.opensource.org/licenses/osl-3.0.php          //
00010 //                                                         //
00012 
00013 #ifndef __CUBE_EQ_H
00014 #define __CUBE_EQ_H
00015 
00016 
00017 // --- STL includes ---
00018 #include <set>
00019 
00020 using std::set;
00021 
00030 class CubicEquation
00031 {
00032  private:
00033   double m_a,m_b,m_c;
00034 
00035   double bisect(double,double,double);
00036   double f(double);
00037 
00038  public:
00039   CubicEquation(double,double,double);
00040 
00041   set<double> getRealRoots(double);
00042 };
00043 
00044 #endif //__CUBE_EQ_H