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