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Re: Bug 1+4/10

  • To: mathgroup at smc.vnet.net
  • Subject: [mg120033] Re: Bug 1+4/10
  • From: Patrick Scheibe <pscheibe at trm.uni-leipzig.de>
  • Date: Wed, 6 Jul 2011 07:05:25 -0400 (EDT)
  • References: <201107060940.FAA29406@smc.vnet.net>

Hi,

please, before make a posting like that make sure you have understood
the basics of how numbers are stored in a computer.
You could have used the subject "unexpected behavior" and the body 
should have contained something like "I don't understand.." or "can someone
explain...", but this is purely offensive so I won't comment it.

Cheers
Patrick



On Jul 6, 2011, at 11:40 AM, slawek wrote:

> Let check
> 
> In[1]:= 1.4 == 1 + 4/10
> Out[1]= True
> 
> In[2]:= a = SetPrecision[1.4, 30]
> Out[2]= 1.39999999999999991118215802999
> 
> In[3]:= b = SetPrecision[1 + 4/10, 30]
> Out[3]= 1.40000000000000000000000000000
> 
> No comment is needed.
> 
> slawek
> 
> 
> 



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