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Re: Problems with integer FairTrackPar charge [message #9405 is a reply to message #9404]

Thu, 17 September 2009 13:14

Elwin Dijck
Messages: 16
Registered: June 2009
Location: Groningen, The Netherland...

occasional visitor

From: *mxp.dsl.internl.net

The rounding issue is not fixed. My guess is that the lines where the charge calculation is done in two steps give a zero charge sometimes (like FairTrackParH.cxx:43-44) due to rounding errors. Perhaps changing it to something like fq = (int)TMath::Sign(1.0, fQp) or doing it in one step would prevent the problem.

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[Message index]

		Problems with integer FairTrackPar charge By: StefanoSpataro on Wed, 16 September 2009 16:58
		Re: Problems with integer FairTrackPar charge By: Elwin Dijck on Wed, 16 September 2009 20:49
		Re: Problems with integer FairTrackPar charge By: Mohammad Al-Turany on Thu, 17 September 2009 01:45
		Re: Problems with integer FairTrackPar charge By: StefanoSpataro on Thu, 17 September 2009 12:04
		Re: Problems with integer FairTrackPar charge By: Elwin Dijck on Thu, 17 September 2009 13:14
		Re: Problems with integer FairTrackPar charge By: Ralf Kliemt on Thu, 17 September 2009 18:32
		Re: Problems with integer FairTrackPar charge By: asanchez on Fri, 18 September 2009 09:33
		Re: Problems with integer FairTrackPar charge By: StefanoSpataro on Fri, 18 September 2009 10:20
		Re: Problems with integer FairTrackPar charge By: Lia Lavezzi on Fri, 18 September 2009 13:20
		Re: Problems with integer FairTrackPar charge By: Mohammad Al-Turany on Fri, 18 September 2009 23:47
		Re: Problems with integer FairTrackPar charge By: StefanoSpataro on Mon, 21 September 2009 11:43
		Re: Problems with integer FairTrackPar charge By: Mohammad Al-Turany on Mon, 21 September 2009 14:46
		Re: Problems with integer FairTrackPar charge By: StefanoSpataro on Mon, 21 September 2009 15:19
		Re: Problems with integer FairTrackPar charge By: StefanoSpataro on Tue, 27 October 2009 10:30
		Re: Problems with integer FairTrackPar charge By: Felix Boehmer on Mon, 21 September 2009 16:08

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