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Incompatible units?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97733] Incompatible units?
  • From: Mathias Lindner <mathias.lindner at web.de>
  • Date: Thu, 19 Mar 2009 05:25:19 -0500 (EST)
  • Organization: Chemnitz University of Technology

Hi

Today I struggled with the units package - again...

Let me show you what I did:

	Dynamic[Subscript[\[Tau], p]]
	Subscript[l, case]
	\[Lambda] = \Convert[Subscript[l, case]/Dynamic[Subscript[\[Tau], p]], 1]

This input results in:

	27.4889 Meter Milli
	281 Meter Milli

	Convert::incomp : Incompatible units in (281 Meter Milli)/(27.4889 
Meter Milli) and 1.
	(281 Meter Milli)/(27.4889 Meter Milli)

If I don't use dynamic but constant tau_p everything is fine...
So Mathematica isn't able to to reduce this fraction? What's the reason 
for this behaviour and what can I do about it?

Thanks for your help!

Mathias


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