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Question: How to achieve its numerical solution？

Question:How to achieve its numerical solution？

lijiwei 25 Maple 17 , Maple Toolboxes , MapleSim , MaplePrimes
plot integral loop
November 15 2016
0

I  encountered a non-integrable integral in the process of solving the following process, . How to achieve its numerical solution? Such as in a looping   code：

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pa[i] := pa[i-1]-(Int(subs(t = tau, Lpa[i-1]+Na1[i-1]-Na2[i-1]), tau = 0 .. t)); 

pw[i] := pw[i-1]-(Int(subs(t = tau, Lpw[i-1]+Nw1[i-1]-Nw2[i-1]), tau = 0 .. t)); u[i] := u[i-1]-(Int(subs(t = tau, Lu[i-1]+Nu1[i-1]+Nu2[i-1]), tau = 0 .. t))；

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Detailed code see annexBC2.mw
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