Hi everybody
I really need help
I want to fit some data points with a function defined by
Double_t mDM(float x, Double_t *par)
{
Double_t value = -(TMath::Power(par[0],par[4])*TMath::Power(TMath::Power(x,-par[2]),(-3 + par[4])/par[2])*par[1]*ROOT::Math::hyperg((3 - par[4])/par[2], (par[3] - par[4])/par[2], (3. + par[2] - par[4])/par[2], -TMath::Power((x/par[0]),par[2])))/(-3. + par[4]);
return value;
}
but I get many errors with the definition of the hypergeometric function.
I will really appreciate your help.
Lizbeth