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Question: linear parabolic second order pde

Question:linear parabolic second order pde

vabramov 32 Maple
derivative linear
June 05 2008
0

i was able to solve this equation before, am i doing smth wrong

> infolevel[pdesolve]:=5:
> pdesolve(-a*u(t,x)+diff(u(t,x),t)+b*diff(u(t,x),x,x)=0,u(t,x));
pdesolve/analyze:   equation order   2
pdesolve/analyze:   derivatives in equation:   {x, t}
pdesolve/analyze:   linear equation
pdesolve/exact/2:   Do not know how to handle equation

 

 

 
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