SumCompositeForm.hpp

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#include "CompositeForm.hpp"
 
namespace polyfem::solver
{
    class SumCompositeForm : public CompositeForm
    {
    public:
        using CompositeForm::CompositeForm;
        ~SumCompositeForm() {}
    
    private:
        inline double compose(const Eigen::VectorXd &inputs) const override
        {
            return inputs.sum();
        }
 
        inline Eigen::VectorXd compose_grad(const Eigen::VectorXd &inputs) const override
        {
            return Eigen::VectorXd::Ones(inputs.size());
        }
    };
} // namespace polyfem::solver