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MathGroup Archive 2001

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POWEREXPAND

  • To: mathgroup at smc.vnet.net
  • Subject: [mg31911] POWEREXPAND
  • From: Blimbaum Jerry DLPC <BlimbaumJE at ncsc.navy.mil>
  • Date: Tue, 11 Dec 2001 01:33:49 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

	Concerning the recent question about PowerExpand of (-1/t)^(3/2)
Sqrt[-t]  note that the results depend on how you enter the formula....

	PowerExpand[Sqrt[(-1/t)^3] Sqrt[-t]]   gives the result   -1/t

	whereas

	PowerExpand[Sqrt[-1/t]^3 Sqrt[-t]   gives the result   1/t


	apparently   typing in (-1/t)^(3/2) Sqrt[-t]  in Mathematica
corresponds to the second way...


	jerry blimbaum   NSWC Panama City, Fl


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