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Re: Units

  • To: mathgroup at
  • Subject: [mg32461] Re: Units
  • From: "John Jowett" <John.Jowett at>
  • Date: Tue, 22 Jan 2002 03:19:27 -0500 (EST)
  • Organization: CERN
  • References: <a2b4ch$lim$>
  • Sender: owner-wri-mathgroup at

      You might like to look at our package

which is an extension of the standard packages Utilities`Notation`and
Miscellaneous`PhysicalConstants`.  It was originally intended for use in
particle accelerator physics but can be used elsewhere too.  The original
motivation was to be able to preserve symbolic physical constants in
expressions (symbols such as SpeedOfLight in the Units package always
evaluate).   The latest version maintains a database of symbols and their
physical units so that you can check dimensional consistency of expressions
as well as converting between systems of units.  You define the symbols
using a palette as they are introduced.

John Jowett

"Juan Fuentes" <jfuentes at> wrote in message
news:a2b4ch$lim$1 at
> Dear colleagues:
>  Could any one say me about a package to work in solving
> physics problems in the area of semiconductor physics where the units are
> authomatically converted? Thanking in adavance, Juan

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