Method post_step_callback

src/ODEIntegrators.cpp:187–191

        void post_deriv_callback() override {};

        void post_step_callback(double t, double h, std::vector<double>& y) override {
            this->t.push_back(t);
            this->h.push_back(h);
            this->y.push_back(y[0]);
        };

        bool premature_termination() override {
            return false;