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>