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Re: question about simplify function

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  • Subject: [mg96949] Re: question about simplify function
  • From: Pillsy <pillsbury at>
  • Date: Sat, 28 Feb 2009 06:40:04 -0500 (EST)
  • References: <go8i2m$l5e$>

On Feb 27, 6:16 am, zxcv_... at wrote:
> This seems like a basic question, but I can't see the answer: Why
> doesn't either the Simplify or FullSimplify function transform the
> expression x/(xy) into 1/y? When I substitute a specific value in for
> x, the simplification occurs as expected, e.g., 4/(4y) transforms to 1/
> y. Puzzling.

Because if you type "xy" without a space between the two letters, Mathematica 
interprets it as single variable named "xy", which it obviously can't

x/(x y)



will do what you want.

Personally, I don't think the convenience of using a space for
multiplication has turned out to be worth the trouble, but clearly WRI
disagrees with me.


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