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MathGroup Archive 2004

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What does +- mean?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg47519] What does +- mean?
  • From: Lautaro Vergara <lvergara at lauca.usach.cl>
  • Date: Thu, 15 Apr 2004 03:39:29 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

I have found (v. 5.0) an extrange thing: when one expands, e.g.,

Series[Sqrt[-1/2+x^2],{x,0,4}]

there appear a +- sign (which is correctly not present when one changes
-1/2 by -1)

is this a bug or a feature?

Thanks

L. Vergara





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