Hi, Acutally, it crashed before this line. i print message for every step. BTW,root will throw a exception for this float error instead crash quietly. Gong Datao On Fri, 7 Mar 2003, Axel Naumann wrote: > Hi, > > > But i found if i make the size of 2D array a little > > bit large, for example 20X20. Root crash quietly. > > > Float_t sen = mc[i][j]*mc[i][j]*1.0/bk[i][j]; > > When increasing the array (and thus decreasing the bin size) the > probability increases that one of the bk[i][j]==0. Are you sure you never > divide by zero? > > Cheers, Axel. > >
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