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MathGroup Archive 2007

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Re: Re: using N function

  • To: mathgroup at
  • Subject: [mg76454] Re: [mg76395] Re: using N function
  • From: Carl Woll <carlw at>
  • Date: Tue, 22 May 2007 02:59:37 -0400 (EDT)
  • References: <f2me6h$lu4$> <f2orbi$6vd$> <>

Szabolcs wrote:

>The OP probably uses Thunderbird, and he copied and pasted the 
>expressions from his first message. Thunderbird has the stupid habit to 
>display the 2 in x^2 as a superscript. When you copy it, it will be 
>copied as x2, not x^2 (and unfortunately nobody cares to fix this bug).
>So 640320^3 got turned into 6403203.
>Pay attention to this if you use Thunderbird and you are copying 
>Mathematica code from e-mail messages ... it bit me more than once.
If you can live without emoticons, you can go to

Tools | Options | Display

and uncheck the option

Display emoticons as graphics

Then, copying x^2 will work.

Carl Woll
Wolfram Research

>Jens-Peer Kuska wrote:
>>Mathematica 5.2 and 6.0 say
>>and so I don't know what you mean ..
>>   Jens
>>kkwweett wrote:
>>>Good morning Mathematica users,
>>>Can anyone tell me, please, which of a),b) or c) is wrong :
>>>N[expr] is equivalent to N[expr, MachinePrecision].
>>>In[1]:=N[Exp[Sqrt[163 ]Pi] - 6403203]
>>>In[2]:=N[Exp[Sqrt[163 ]Pi] - 6403203,$MachinePrecision]
>>>Thank you

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