Dear ROOTers, I'm using ROOT 3.05/07, and am getting non-numerical results out of the TMath::Poisson function, under what I admit are extreme conditions: root [2] TMath::Poisson(170,70) Error: Symbol inf is not defined in current scope FILE: LINE:0 (Double_t)inf *** Interpreter error recovered *** Yes, I know that the result should be a very tiny number, but I would prefer that I get 0.0 (or its moral equivalent) rather than something I can't do math with. Can you recommend a protection against this? Thanks, best wishes. Ken Bloom ------------------------------------------------------------------------------ Ken Bloom, Karma Adjuster Department of Physics 734-763-2329 / 734-936-1817 (fax) University of Michigan kenbloom@umich.edu http://www.umich.edu/~kenbloom
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