Height of a gaussian fit

Dear experts,

I fit my histogram using a gauss fit by using:

double gauss(double *x, double *par){
return par[0]TMath::Exp(-0.5TMath::Power((x[0]-par[1])/par[2],2));
}

Can you please tell me how can I compute the gauss hight at the peak (mean),
from the return parameters of the gauss fit?

Regards

Wikipedia -> Gaussian function

Dear Coyote,

thank you, that’s what I need.

Regards