TMinuit Return codes reference?

I’m using an implementation of TMinuit for the Fermi-LAT experiment (example analysis thread)
Is there a reference for the return codes from TMinuit? The ones listed here don’t correspond to what I get (the reference only shows return codes 1-12, but often I get something like 102 or 156).


That depends on the command mnexcm invokes. In general, the only authoritative source of information - apart from the code :wink: is the Minuit reference manual that’s linked from the ROOT documentation you linked:

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