crank_nicolson.hpp

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#pragma once
 
#include "method.hpp"
#include <string>
 
/**
 * @brief Crank-Nicolson scheme implementation.
 */
class CrankNicolson : public Method
{
  public:
    std::string name() const override
    {
        return "Crank-Nicolson";
    }
 
    bool uses_previous_step() const noexcept override
    {
        return false;
    }
 
    /**
     * @brief Advance one time step using Crank-Nicolson scheme.
     */
    void step(const Grid& g,
              double D,
              double dt,
              const std::vector<double>& Tprev,
              const std::vector<double>& Tcurr,
              std::vector<double>& Tnext) const override;
};