Hello,
I’m trying to implement the TF2::DrawDerivative using the code:
double function(double *xx, double *par){
double x = xx[0]; double y = xx[1];
return x**2+3*y**3;
}
void run(){
TCanvas *c = new TCanvas();
TF2 f("myfunc",function,0,3,0,3,0);
TGraph *g = (TGraph*)f.DrawDerivative("al");
//f.DrawDerivative();
}
In the case TF1::DrawDerivative(), the structure code above work, but for TF2 the graph is not generated.
Best regards,
Sony