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Question: Get pdoslve/numeric value

Question:Get pdoslve/numeric value

John Eric 80 Maple
derivative pdsolve listprocedure
June 10 2016
0

Hi evrey ones in pdsolve we have these commande to use U(x,t) 

> U:= subs(pds:-value(output=listprocedure), u(x,t));

  id like to get du(x,t)/dt

i tried these  

U:= subs(pds:-value(output=listprocedure), du(x,t)/dt);  but is not work

thank you 

 
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