| Author |
Comment/Response |
Carbaboran
|
 01/25/12 06:53am
An easy way to solve this problem is to replace variables {x,y,..} by {x*epsilon, y*epsilon, ..}
and make the expansion in epsilon. Afterwards set epsilon -> 1.
Example:
temp = Sqrt[1 - x^2 + y]
temp = temp /. {x -> xp*\[Epsilon], y -> yp*\[Epsilon]}
ExpandAll[Normal[Series[temp, {\[Epsilon], 0, 2}]]]
% //. {\[Epsilon] -> 1,xp->x,yp->y}
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