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a bug in RealDigits? Mathematica 5.0

• To: mathgroup at smc.vnet.net
• Subject: [mg45211] a bug in RealDigits? Mathematica 5.0
• From: nma124 at hotmail.com (steve_H)
• Date: Sat, 20 Dec 2003 05:56:49 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

hello;

Mathematica 5.0, student version, on XP home edition:

t1 = 39383738378094852309445543850343.49494
 
{c, d} = RealDigits[t1];

now c is 

{3, 9, 3, 8, 3, 7, 3, 8, 3, 7, 8, 0, 9, 4, 8, 5, 2, 3, 0, 9, 
4, 4, 5, 5, 4, 3, 8, 5, 0, 3, 4, 3, 4, 9, 4, 9}

notice that I typed in the last digits of t1 as '.49494', i.e the
number to the right of the decimal point.

But 'c' above is missing the last digit, it only reports '4,9,4,9' 
instead of '4,9,4,9,4'

What happened to the last digit '4' ?

• Follow-Ups:
  • Re: a bug in RealDigits? Mathematica 5.0
    • From: Murray Eisenberg <murray@math.umass.edu>
  • Re: a bug in RealDigits? Mathematica 5.0
    • From: Andrzej Kozlowski <akoz@mimuw.edu.pl>