Please identify your version first. In case you are using a version older than 3.03/09, please try with this version. If the symptom persists, send a small data file and a script showing the problem. Rene Brun On Tue, 3 Dec 2002, Datao Gong wrote: > Hi, > I convert a ntuple file to root file. I analysis it via root like > that: > ... > TFile *f = new TFile("myroot.root"); > Three *tree = h1; //This is Three key in root file. > TCut vtxcut("sqrt(Ksvx*Ksvx+Ksvy*Ksvy+Ksvz*Ksvz)>0.03"); > TCut richcut("Ksrhphs1>3&&Ksrhphs2>3&&Ksrh1==1&&Ksrh2==1\ > &&Ksrhpil1<Ksrhkl1&&Ksrhpil2<Ksrhkl2"); > tree->Draw("Ksmass",vtxcut&&richcut); > *** Break *** floating point exception > > But if > tree->Draw("Ksmass",vtxcut); > or > tree->Draw("Ksmass",richcut); > > it is ok! > > It seems strange. > > Thank you > Gong Datao > > >
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