So I have this PDE:(adsbygoogle = window.adsbygoogle || []).push({});

d^{2}T/dr^{2}+ 1/r dT/dr + d^{2}T/dθ^{2}= 0.

How do I implement dT/dr || [r = 0] = 0? Also, what should I do about 1/r?

This is actually the first time I am going to attack FDF in polar/cylindrical coordinates. I can finite-difference the base equation fairly decently; I am just having a hard time in implementing the derivative boundary condition at r = 0. Can someone give me an idea what to do?

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# A 2D Finite Difference formulation in polar coordinates.

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