MathGroup Archive: May 2007 [00895]

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Re: using N function

To: mathgroup at smc.vnet.net
Subject: [mg76364] Re: using N function
From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
Date: Sun, 20 May 2007 02:36:13 -0400 (EDT)
References: <f2me6h$lu4$1@smc.vnet.net>

Hi,

Mathematica 5.2 and 6.0 say

2.625374126343655*10^17

and so I don't know what you mean ..

Regards
   Jens

kkwweett wrote:
> Good morning Mathematica users,
> 
> 
> Can anyone tell me, please, which of a),b) or c) is wrong :
> 
> a)
> <MathematicaHelp>
> <quote>
> 
> N[expr] is equivalent to N[expr, MachinePrecision].
> 
> </quote>
> </MathematicaHelp>
> 
> b)
> In[1]:=N[Exp[Sqrt[163 ]Pi] - 6403203]
> Out[1]=256.
> 
> 
> c)
> In[2]:=N[Exp[Sqrt[163 ]Pi] - 6403203,$MachinePrecision]
> Out[2]=743.9999999999993
> 
> ?
> 
> Thank you
>

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