Hi
I have a basic question about using TMath and TF1 together. I tried a very simple example.cpp file:
[code]{
gROOT->Reset();
#include “TMath.h”
//check TMath ok
cout << "TMath::Power(2,2) = " << TMath::Power(2,2) << endl;
fa2 = new TF1(“fa2”,“TMath::DiLog(x)”,0,10);
fa2->Draw();
//test = new TF1(“test”,“TMath::Erf(x)”,-2,2);
//test->Draw();
}[/code]
and I get the output:
[code]root [6] .x simple.cpp
TMath::Power(2,2) = 4
*ERROR 30 :
Bad numerical expression : "TMath::DiLog(x)"
Error in TF1::TF1: function: fa2/TMath::DiLog(x) has 0 parameters instead of 1[/code]
what am I doing wrong ?
thanks
Laura
