Hello every one,

Here I will recall the PDE and its numerical solutiion provided by Maple help.

PDE := diff(u(x,t),t)=-diff(u(x,t),x);

IBC := {u(x,0)=sin(2*Pi*x),u(0,t)=-sin(2*Pi*t)};

pds := pdsolve(PDE,IBC,numeric,time=t,range=0..1);

p1:=pds:-plot(t=0,numpoints=50):

p2:=pds:-plot(t=1/8,numpoints=50,color=blue):

p3:=pds:-plot(t=1/4,numpoints=50,color=green):

plots[display]({p1,p2,p3});

I want to export data...