inline static void PlotFuncCB(double& y, double x, double (*f)(double)) { y = f(x); }
	void PlotFunction(double (*f)(double),const String& legend="", const class::Color& fcolor=Green,const int& weight=6)
	{
		PlotFunction(callback1(&PlotFuncCB, f), legend, fcolor, weight);
	}

	inline static void PlotParamFuncCB(XY& xy, double t, XY (*pf)(double)) { xy = pf(t); }
	void PlotParaFunction(XY (*pf)(double),const String& legend="", const class::Color& fcolor=Green,const int& weight=6,const int& Np=100)
	{
		PlotParaFunction(callback1(&PlotParamFuncCB, pf), legend, fcolor, weight, Np);
	}