Question: see the solution og an edp

Hi

 

I've to solve a EDP with boundary conditions with Maple :

EDP := [diff(u(x,t),t) = -0.35 diff(u(x,t),x)];
IBC := {u(x,0)=f(x), u(0,t)=u(10,t)};

(f is an function dirac of amplitude = 1. 0<x<10)

PDS:=pdsolve(EDP,IBC,u,numeric,time=t,range=0..10)

 

And now, i'de like to see the solutions. So i do :

Uplot:=pds:-plot(u(x,t),t,numpoints=50);
plot(Uplot);

 

But i receive an error :

Error, (in pdsolve/numeric/plot) unable to compute solution for t<0.:
solution becomes undefined, problem may be ill posed or method may be ill suited to solution

 

Thanks for your help ;)


 

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