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Re: Units question

  • To: mathgroup at
  • Subject: [mg115485] Re: Units question
  • From: Bill Rowe <readnews at>
  • Date: Wed, 12 Jan 2011 04:07:47 -0500 (EST)

On 1/11/11 at 7:23 PM, tsariysk at (Ted Sariyski) wrote:

>Hi, Working with units I get correct result:

>Sqrt[Meter^2/Second^2] Second)/Meter^2

>How to tell Mathematica to simplify the result to Meter^-1?
>Simplify and FullSimplify doesn't do the job. Thanks in advance,

With the default Mathematica installation you can do:

In[1]:= Sqrt[Meter^2/Second^2] Second/Meter^2 // PowerExpand

Out[1]= 1/Meter

But from my viewpoint a better solution is to install the
package AutomaticUnits which can be found at:


With that package installed, Mathematica does:

In[1]:= << AutomaticUnits`

In[2]:= Sqrt[Meter^2/Second^2] Second/Meter^2

Out[2]= m^-1

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