Hi, The CVS repository has been updated with a few improvements to TFormula (and thus to TF1 and TTreeFormula). TFormula::Compile has been updated to be calleable a 2nd time (i.e. properly clear the data members). TFormula has been upgraded to be able to understand and call any global functions or static data member functions that returns a numerical value and takes numerical arguments. For example you can now do (because TMath::BreitWigner is a static member function): TF1 *f = new TF1("f","x*TMath::BreitWigner(x,[0],[1])"); Cheers, Philippe.
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