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Re: Number of digits

• To: mathgroup at smc.vnet.net
• Subject: [mg73900] Re: [mg73848] Number of digits
• From: Bob Hanlon <hanlonr at cox.net>
• Date: Sat, 3 Mar 2007 00:51:10 -0500 (EST)
• Reply-to: hanlonr at cox.net

Use NumberForm


Bob Hanlon

---- Robert Pigeon <robert.pigeon at videotron.ca> wrote: 
> Good afternoon,
> 	How can I force Mathematica to output an answer with a certain number of
> significant digits ? What I mean is I want the answer of, let say, 1.0 / 3
> to be output in Mathematica as 0.33 for example. The reason I want to do
> that is that I am making a table (using TableForm) of a list of answers to
> use in a report. I do not want to see 0.33333 in the table just 0.33 !
> 	I could use SetPrecision[1./3, 2], but I do not want to do that for every
> calculation. I have looked at $MachinePrecision and all other $.... , but I
> cannot make sense out of it.
> 	So what I am trying to do, in a nut shell, is do what can be done with a
> pocket calculator, set my "visible" answer with a certain number of digits!
> 
> Thanks,
> 
> Robert
> 
> Robert Pigeon
> TZ = -5