#ifndef GRAPH_CARTESIAN_FUNCTION_H #define GRAPH_CARTESIAN_FUNCTION_H #include "../shared/function.h" namespace Graph { class CartesianFunction : public Shared::Function { public: using Shared::Function::Function; CartesianFunction(const char * text = nullptr, KDColor color = KDColorBlack); bool displayDerivative(); void setDisplayDerivative(bool display); double approximateDerivative(double x, Poincare::Context * context) const; char symbol() const override; private: bool m_displayDerivative; }; } #endif