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MathGroup Archive 2005

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Re: Get numbers out of PhysicalConstants?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg62606] Re: Get numbers out of PhysicalConstants?
  • From: "Steve Luttrell" <steve_usenet at _removemefirst_luttrell.org.uk>
  • Date: Tue, 29 Nov 2005 04:45:25 -0500 (EST)
  • References: <dme8l6$inj$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

<< Miscellaneous`PhysicalConstants`

VacuumPermeability*(Ampere*Meter)/(Second*Volt)

Steve Luttrell

"Wonseok Shin" <wssaca at gmail.com> wrote in message 
news:dme8l6$inj$1 at smc.vnet.net...
> Hello,
>
> Is there any way to get numbers out of the constants defined in
> Miscellaneous`PhysicalConstants` package?  Carrying units all the time
> is inconvenient in calculation.
>
> For example,
> In[1]:= << Miscellaneous`PhysicalConstants`
> In[2]:= VacuumPermeability
> Out[2]= \!\(\(p\ Second\ Volt\)\/\(2500000\ Ampere\ Meter\)\)
>
> I want to get the number p/2500000 out of VacuumPermeability, without
> units.  How can I do this?
> 



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