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Re: Units question

• To: mathgroup at smc.vnet.net
• Subject: [mg115499] Re: Units question
• From: "Kevin J. McCann" <Kevin.McCann at umbc.edu>
• Date: Thu, 13 Jan 2011 03:24:04 -0500 (EST)
• References: <201101090720.CAA18019@smc.vnet.net> <igisan$pot$1@smc.vnet.net>

I have seen a number of responses that suggest the use of PowerExpand, 
which I do myself. But shouldn't Mathematica know that Meter and all the 
other units are Real? After all, these are in the Units package. Even 
more irritating is that in a Simplify, Mathematica does not deconstruct 
things like Joule or Pascal into base units to simplify things. I find 
that I have to use a rule set that turns Joule->Kilogram Meter^2/Second. 
It would be nice if this were automatic.

Kevin

On 1/11/2011 7:23 PM, 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,
> --Ted
>
>
>
>

• References:
  • Odd (to me) Context issue with Packages?
    • From: Jason Ledbetter <jasonbrent@gmail.com>