So the correct PF expansion would be,

?

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- December 9th 2010, 10:29 AMjegues
- December 9th 2010, 04:58 PMTheEmptySet
- December 9th 2010, 08:14 PMAckbeet
I, for one, am not seeing why there has to be a

term when there isn't one in the LT. Is there one in the LT? If so, why didn't it cancel? Here's what I have from the original DE:

LT gives

This implies

or

and hence

There's no in there.

Did I do something wrong? - December 9th 2010, 09:02 PMTheEmptySet
- December 10th 2010, 02:40 AMAckbeet
Well, you know you're a mathematician if you can do vector calculus but not long division. (Wink)