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About how to rewrite a equation

Posted 10 years ago

I am a beginner of Mathematica. Now I need to rewrite one function f(u,p,r) in the format of h1(p)u^2+[h4(p)r+h5(p)]u+h6(p)r^3+h7(p)r^2+h8(p)r+h9(p). It is known that f(u,p,r) could be rewrite in the format above. I tried to use expand and collect, but I cannot rewrite the f(u,p,r) in that format.

POSTED BY: KE DING

It is not quite clear what you are wanting. Are you wanting to create a Taylor expansion of the function? If so the following tutorial should help get you started on that:

http://reference.wolfram.com/language/tutorial/MakingPowerSeriesExpansions.html

POSTED BY: David Reiss
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