How to use Hesse Algotithm in Root


I have fitted data using MIGRAD and MINOS by following user guide but now I want to use hesse algorithm to improve the fit result.Please tell me how can I fit my data with hesse in Root.



Normally Hesse is often called when using MIGRAD at the end of the minimization. To force to use it you can issue the HESSE command if you are using TMinuit or use the MnHesse class if you are using Minuit2.