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MathGroup Archive 2000

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Wrong Precision with "N" ??

  • To: mathgroup at smc.vnet.net
  • Subject: [mg24108] Wrong Precision with "N" ??
  • From: "J.R. Chaffer" <jrchaff at mcn.net>
  • Date: Tue, 27 Jun 2000 00:52:00 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Will someone explain to this newbie why the advertised
behavior of the numerical evaluation function "N" to some
specific precision - flatly ignores the second argument?

For example, on my machine,

N[Pi,2] = N[Pi,3] = N[Pi,4] = N[Pi,10] = 3.14159

which is not at all what 'Help', and any number of books,
claim, with no explanation of why it just might not work
out that way (??)

Thanks,
J.R. Chaffer



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