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MathGroup Archive 2004

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  • To: mathgroup at
  • Subject: [mg50520] Log[4]==2*Log[2]
  • From: Andreas Stahel <sha at>
  • Date: Thu, 9 Sep 2004 05:17:32 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

To whom it may concern

the following answer of Mathematica 5.0 puzzeled me

leads to

N::meprec: Internal precision limit $MaxExtraPrecision = 50.` reached while \
evaluating -2\Log[2]+Log[4]

with the inputs given as answer. But the input


leads to a sound "True"

leads to the correct 0, but
yields no result

There must be some systematic behind thid surprising behaviour.
Could somebody give me a hint please

With best regards

Andreas Stahel       E-Mail: Andreas.Stahel at [ANTI-SPAM]
Mathematics, HTI     Phone: ++41 +32 32 16 258
Quellgasse 21        Fax:   ++41 +32 321 500
CH-2501 Biel         WWW:

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