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Re: How to get sqrt(Year^2)===Year?
Use PowerExpand. Bobby On Wed, 09 May 2007 03:33:05 -0500, Hatto von Aquitanien = <abbot at AugiaDives.hre> wrote: > If I have some expression which takes the square root of a square, it > evaluates leaving the whole square root expression unchanged. > > Year == (Year^2)^(1/2) > > just returns what I entered when evaluated. > > Year == Year > > evaluates to True. > > How do I persuade Mathematica to evaluate the first expression = > completely? -- = DrMajorBob at bigfoot.com