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MathGroup Archive 2000

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Re: About N in Mathematica 4

  • To: mathgroup at smc.vnet.net
  • Subject: [mg25367] Re: About N in Mathematica 4
  • From: leko at ix.netcom.com (J. Leko)
  • Date: Sun, 24 Sep 2000 03:01:34 -0400 (EDT)
  • References: <8qhn06$j09@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Ahhh...

It sounds like you're coming from an older version of Mathematica. I too
had this problem when I switched to 4.0. It appears that the definition of
the N function has changed since then. What you now need to use is the
NumberForm function (section 2.8.7). It seems to operate in a fashion
similar to the old N.

Regards,

J. Leko

Please reply to leko*j at cspar.uah.edu and remove the *

In article <8qhn06$j09 at smc.vnet.net>, "Sistrall" <silvano.stralla at tin.it> wrote:

> Hi!
> 
> I've a question about the function N in Mathematica 4. I haven't found
> information about this problem.
> 
> The question is: why if I use N[Pi,30] I'll have a number of 30 decimal
> digits, but with N[Pi,10] or N[Pi,3] I'll get a number of 6 digits?
> 
> The right number of digits is given only if I use a precision bigger than
> the precision of the machine. But if I want a number of 3 decimal digits?
> 
> Thanks.


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