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 Author Comment/Response Sebastian Schwab 03/11/08 07:31am Hi, First of all, I'm quite a Newbie with integration at all but after hours of reading and trying I don't get any further. I programmed a notebook with some if conditions and wanted to integrate it, but the only thing it shows me ist Out=0. Here's the notebook: n:=1 tu:=50 tn:=n*tu phi:=2*Pi*t/tu Rs:=92 Rt:=209.5 Flow:=92.73*E^(-0.011*z)/10000 z:=xT-x xT:=390 x:=Rs*Cos[4.1*Phi]+Rt*Cos[phi] Flow1:=If[x<0, 0, Flow] Flow2:=If[x{{0, tn}, {0.004, 0}}] The plot works fine. realFlow only shows the areas where "Flow1 and Flow2" condition is complied. But when I try to Integrate that fine looking plot it doesn't get me a useful output: NIntegrate[realFlow, {t, 0, tn}] A non numerical solution would be way better but seems not to work on my computer. Hope for help! URL: ,

 Subject (listing for 'Integration of If Conditions') Author Date Posted Integration of If Conditions Sebastian Sc... 03/11/08 07:31am Re: Integration of If Conditions Xavier 03/11/08 3:30pm Re: Re: Integration of If Conditions Sebastian Sc... 03/11/08 5:13pm Re: Re: Integration of If Conditions Sebastian Sc... 03/12/08 08:26am Re: Integration of If Conditions Xavier 03/14/08 1:47pm Re: Integration of If Conditions Sebastian Sc... 03/17/08 02:39am Re: Re: Integration of If Conditions Xavier 03/18/08 07:44am Re: Re: Re: Integration of If Conditions Sebasitan Sc... 03/26/08 03:08am Re: Re: Re: Integration of If Conditions Sebastian Sc... 03/26/08 04:35am Re: Re: Re: Integration of If Conditions Sebastian Sc... 03/26/08 05:49am
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