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Re: [mg4998] Simplification of (a^2)*Sqrt[a^(2)]
Posted:
Nov 1, 1996 2:45 PM


Use PowerExpand Clear[a] PowerExpand[ Sqrt[a^2]]
a
On Thu, 17 Oct 1996, Michael Hucka wrote:
> I've recently begun using Mathematica and have been encountering a curiousity > that I hope someone can explain. The problem is that Mathematica sometimes > leaves expressions with terms such as > > 2 2 2 2 > Out[15]= Sqrt[a ] a Sqrt[b ] b ...... > > in them. I guess this happens because the system doesn't know whether a > 0. > For cases where I know a > 0, b > 0, what is the proper way of getting > Mathematica to simplify these expressions down to (for this example) a b ? > > Thanks for any tips. > >  > __ __ > Mike Hucka hucka@umich.edu http://ai.eecs.umich.edu/people/hucka [ \/ ] > Ph.D. candidate, computational models of human visual processing ][\/][ > Programmer analyst & news admin at U. Michigan Dept. of EECS [__][__] >



