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Question: How to change coordinate?

Question:How to change coordinate?

mary120 65 Maple 11
coordinates pde transform differential-equations
April 17 2020
2

How can I transform the following differential equation from (x,t) to (X,T) coordinate, where, for example, X=x-alpha*t, T=beta*t (alpha and beta are constant)

diff(z, t)+(diff(R, x))*L+A*(diff(L, x))+diff(k, x, x)-(diff(k, t, t)) = 0

Thanks.
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