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MathGroup Archive 2004

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Re: Unexpected Result for InputForm

  • To: mathgroup at smc.vnet.net
  • Subject: [mg47647] Re: Unexpected Result for InputForm
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 20 Apr 2004 03:18:53 -0400 (EDT)
  • Organization: Universitaet Leipzig
  • References: <c5oasf$1fd$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

precision is a flaoting point number ans not just "29 digits"

Regards
  Jens

Harold Noffke wrote:
> 
> $Version "5.0 for Microsoft Windows [2000] (November 18, 2003)"
> 
> MathGroup:
> 
> In[5]:=
>         $NumberMarks
> Out[5]=
>         Automatic
> In[6]:=
>         x=1234567890.12345678901234567890;
> In[7]:=
>         InputForm[x]
> Out[7]//InputForm=
>         1.2345678901234567890123456789`29.091514977212704*^9
> 
> In Out[7], the `29 says there are 29 digits (correct); the *^9 says
> x10**9 (correct); but the .091514977212704 in between I can't figure
> out.  What does this string of numbers mean, and where is it's
> documentation?
> 
> Thanks.
> Harold


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