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Re: These Simple Four Lines of Mathematic Confound Me -- Bug?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg121439] Re: These Simple Four Lines of Mathematic Confound Me -- Bug?
  • From: Richard Fateman <fateman at cs.berkeley.edu>
  • Date: Thu, 15 Sep 2011 04:39:35 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <j4prlp$fne$1@smc.vnet.net>

On 9/14/2011 2:20 AM, James Stein wrote:
> g := { NumberForm [ 13.0, { 5, 3 } ] };
>     g
>     % // N



in FullForm, g is List[NumberForm[13.`,List[5,3]]]

converting that to floating point numbers results in ...List[5.,3.] 
which is illegal as a format.

while NumberForm [....]  prints something that you appear to like,  it 
does not return a value that you apparently expect.

RJF





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