MathGroup Archive 1997

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Re: floor problems

  • To: mathgroup at smc.vnet.net
  • Subject: [mg8151] Re: [mg8113] floor problems
  • From: Lou Talman <me at talmanl.mscd.edu>
  • Date: Sat, 16 Aug 1997 11:50:55 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

The example I gave in my earlier post seems to show that multiplication of
floating point numbers isn't commutative.  In fact, the problem is with
associativity, as I claimed.  Here is the example I should have given:

In[2]:=
((.7 67 )10)-(.7 (67 10))

Out[2]=
\!\(5.68434188608080148`*^-14\)

--Lou Talman


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