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MathGroup Archive 2001

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Re: Q: Factor with Polynominals?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg26741] Re: Q: Factor with Polynominals?
  • From: Robert <robert.schuerhuber at gmx.at>
  • Date: Fri, 19 Jan 2001 02:14:16 -0500 (EST)
  • Organization: Vienna University of Technology
  • References: <943d4e$chm@smc.vnet.net> <9461cq$gaa@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

thanks for this solution, it works very well in some cases.

but unfortunately this is not exactly the solution i was looking for, maybe i
stated the problem unprecise:

i'd like to single out a polynomial from an other (longer polynomial), e.g.

Expand[(x^2 + y^2)^4 + y (x^2 + y^2)+y]

yields

y+x^2 y+y^3+(x^2+y^2)^4

with the method suggested by you.

but i would like to get

(x^2+y^2) ((x^2+y^2)^3 + y) + y,

therefore in this example i'd like to single out the polynomial x^2+y^2.

is there a way to do this?

thanks, robert



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