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Re: problems with N[]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg38715] Re: problems with N[]
  • From: Ray <rayfg at optonline.net>
  • Date: Mon, 6 Jan 2003 03:44:08 -0500 (EST)
  • References: <av94u6$sb9$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Try NumberForm[N[result],4] or SetPrecision[result,4].

1.156 wrote:
> I'm getting a numerical output which has about 12 significant digits.  I wanted to give a printout to someone and I need only 4 significant digits (otherwise it represents a result to precise).
> 
> I thought that was what N[] was for so I put out N[result,4].
> 
> For some reason I still get 12 digits displayed.  I looked through he help material and it says
> "n must lie between $MinPrecision and $MaxPrecision. $MaxPrecision can be set to Infinity. "
> I checked and these numbers are 0 and 10^6, respectively.
> 
> So, I gave up on N[] and tried Ceiling[10000*result]/10000 and damn if I didn't get "6/625"
> for an answer.
> 
> I want to display a decimal result with 4 significant digits, can anyone tell me how to do it?
> 
> Thanks.
> 


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