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Re: Data functions (like ElementData) and physical units

• To: mathgroup at smc.vnet.net
• Subject: [mg83137] Re: Data functions (like ElementData) and physical units
• From: WetBlanket <Wyvern864 at gmail.com>
• Date: Mon, 12 Nov 2007 05:18:46 -0500 (EST)
• References: <fgs95u$56i$1@smc.vnet.net><fh1bri$a6a$1@smc.vnet.net>

On Nov 9, 4:13 am, John Jowett <John.M.Jow... at gmail.com> wrote:
> On Nov 8, 12:28 pm, Chris  Chiasson <chris.chias... at gmail.com> wrote:
>
> > On Nov 7, 5:56 am, John Jowett <John.M.Jow... at gmail.com> wrote:
>
> > >>>>>>>>>>>>>SNIP>
> > I am self-censoring my comments about the overall utility of the data
> > functions (and the physical constants package) for real work.
>
> Chris, I have to remark that I find these packages very useful for my
> work (I'm not sure if that counts as "real work" ...).   And I think
> the data functions are a beautiful idea.
>
> However I do use a package of my own to enhance PhysicalConstants.  It
> creates protected symbolic versions of the constants (like c for
> SpeedOfLight) which don't evaluate numerically until you apply N[ ] to
> them (just like Pi or E) so physical formulas don't immediately
> collapse into a mixture of symbols, numbers and units.  Working with
> units, dimension checking, etc. is often very convenient in physics.
>
> It is presently being adapted for Version 6 but will soon be ready.
>
> John

 I hope you will share it with all of use when you have it ready for
version 6.

Regards
Gary