ImplicitEuler.hpp

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#pragma once
 
#include <polyfem/time_integrator/ImplicitTimeIntegrator.hpp>
 
namespace polyfem::time_integrator
{
    class ImplicitEuler : public ImplicitTimeIntegrator
    {
    public:
        ImplicitEuler() {}
 
        void update_quantities(const Eigen::VectorXd &x) override;
 
        Eigen::VectorXd x_tilde() const override;
 
        Eigen::VectorXd compute_velocity(const Eigen::VectorXd &x) const override;
 
        Eigen::VectorXd compute_acceleration(const Eigen::VectorXd &v) const override;
 
        double acceleration_scaling() const override;
 
        double dv_dx(const unsigned prev_ti = 0) const override;
    };
} // namespace polyfem::time_integrator