Chaste  Release::3.4
EulerIvpOdeSolver.cpp
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35 
36 #include "EulerIvpOdeSolver.hpp"
37 
39  double timeStep,
40  double time,
41  std::vector<double>& rCurrentYValues,
42  std::vector<double>& rNextYValues)
43 {
44  // For each timestep in AbstractOneStepIvpSolver calculates a vector containing
45  // the next Y value from the current one for each equation in the system.
46 
47  const unsigned num_equations = pAbstractOdeSystem->GetNumberOfStateVariables();
48 
49  // Yes, this looks weird, but it makes good use of memory!
50  pAbstractOdeSystem->EvaluateYDerivatives(time, rCurrentYValues, rNextYValues /*dydt is stored here*/);
51 
52  for (unsigned i=0; i<num_equations; i++)
53  {
54  // rNextYValues contains dY/dt until here
55  rNextYValues[i] = rCurrentYValues[i] + timeStep*rNextYValues[i];
56  }
57 }
58 
59 
60 // Serialization for Boost >= 1.36
virtual void EvaluateYDerivatives(double time, const std::vector< double > &rY, std::vector< double > &rDY)=0
void CalculateNextYValue(AbstractOdeSystem *pAbstractOdeSystem, double timeStep, double time, std::vector< double > &rCurrentYValues, std::vector< double > &rNextYValues)
#define CHASTE_CLASS_EXPORT(T)