Re: "Nice" complex form
- To: mathgroup at smc.vnet.net
- Subject: [mg131593] Re: "Nice" complex form
- From: "Nasser M. Abbasi" <nma at 12000.org>
- Date: Tue, 10 Sep 2013 03:32:46 -0400 (EDT)
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On 9/8/2013 11:00 PM, sam.takoy at yahoo.com wrote: > Hi, > > Can I get > > Assuming[a - 4 < 0, Sqrt[a - 4]] > > to "simplify" to > > I Sqrt[4 - a] > > ? > > Thanks, > > Sam > > Assuming[a - 4 < 0, Simplify@ComplexExpand@Sqrt[a - 4]] (* I Sqrt[4 - a] *) --Nasser