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Symbolic partial derivative input

Paul Warburton, Student
Posted 1 year ago

Hi,

Could someone please tell me how to enter this PDE into Mathematica? I am really struggling with the partials.

Cheers, Paul

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POSTED BY: Paul Warburton
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Here is a way, using the D operator:

D[u[r, t], t] ==
 1/r D[r*D[u[r, t], r], r]
(D[u[r, t], r] /. r -> 0) == 0
(D[u[r, t], r] /. r -> 1) == 0
POSTED BY: Gianluca Gorni

Thank you, I will try that :)
POSTED BY: Paul Warburton
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