Hello! first I move to the directory $ROOTSYS/tutorials, then I execute the root command, and I get the root prompt, and then I load the file Ifit.C and execute the routine inside. I copy it from the screen : tical10:rh73_gcc2952/root/tutorials> root ------------------------------------------------------------------------------------- ******************************************* * * * W E L C O M E to R O O T * * * * Version 3.05/05 8 May 2003 * * * * You are welcome to visit our Web site * * http://root.cern.ch * * * ******************************************* FreeType Engine v2.1.3 used to render TrueType fonts. Compiled for linux with thread support. CINT/ROOT C/C++ Interpreter version 5.15.86, Apr 29 2003 Type ? for help. Commands must be C++ statements. Enclose multiple statements between { }. root [0] .L Ifit.C root [1] Ifit() ********** ** 1 **SET ERR 1 ********** PARAMETER DEFINITIONS: NO. NAME VALUE STEP SIZE LIMITS 1 a1 3.00000e+00 1.00000e-01 no limits 2 a2 1.00000e+00 1.00000e-01 no limits 3 a3 1.00000e-01 1.00000e-02 no limits 4 a4 1.00000e-02 1.00000e-03 no limits ********** ** 2 **MIGRAD 500 1 ********** FIRST CALL TO USER FUNCTION AT NEW START POINT, WITH IFLAG=4. *** Break *** segmentation violation Root > Function Ifit() busy flag cleared root [2] .q This is the end of ROOT -- Goodbye ------------------------------------------------------------------------------------------------ Belen. Rene Brun wrote: >I do not see any problems wityh this example ($ROOTSYS/tutorials/Ifit.C) >Could you tell us very precisely what you are doing/executing? > >Rene Brun > >Belen Salvachua Ferrando wrote: > > >>Hello! >> >> I'm trying to use the TMinuit library, first I tried with the example >>in the web: http://root.cern.ch/root/HowtoFit.html >>in the sub section Fitting in general using the class TMinuit. But when >>the program arrives to the command line: >> >> gMinuit ->mnexcm ("MIGRAD", arglist ,2,ierflg); >> >> I get : >> >> ********** >> ** 2 **MIGRAD 500 1 >> ********** >> FIRST CALL TO USER FUNCTION AT NEW START POINT, WITH IFLAG=4. >> >> *** Break *** segmentation violation >>Abort (core dumped) >> >>The ROOT version I'm using is: v3.05.05 >>and the compile version : rh73_gcc2952 >> >>Am I doing something wrong? >> >>Thanks and regards >> Belen. >> >>
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