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RE: approximation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg79449] RE: [mg79431] approximation
  • From: Robert Pigeon <robert.pigeon at videotron.ca>
  • Date: Fri, 27 Jul 2007 05:46:34 -0400 (EDT)
  • References: <200707261029.GAA09542@smc.vnet.net>

Hi Giorgio,
	I asked the same question a few months ago and I got some answers.
Here is what I am using (Mathematica 5.2, but works also with 6):

nf2[n_]:=NumberForm[n,{16,2},NumberPadding -> {"", "0"}];

This will give you 2 digits, if you need something different change {16,2}
to what you need.

In Mathematica 6 you can specify the same thing in 
Edit -> Preferences -> Appearance -> Numbers -> Formatting   and change the
"Display precision"
But you have to change this every time you want to modify your output. 

Hope this help,

Robert

-----Original Message-----
From: giorgioruaro at gmail.com [mailto:giorgioruaro at gmail.com] 
Sent: July-26-07 06:29
To: mathgroup at smc.vnet.net
Subject: [mg79449] [mg79431] approximation

hello. My question is very very easy.
I have got a variabile as "a" and i want to print his approximated
value with n decimal digit.

a=1.56068376362920545943;
Print["The value is : ", 1.6];
or
Print["The value is : ", 1.56];

Is there anyone who can help me ?
thanks
Giorgio




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