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MathGroup Archive 2004

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Re: 34.123*89 = 3036.95 (3036.947)

  • To: mathgroup at smc.vnet.net
  • Subject: [mg47932] Re: 34.123*89 = 3036.95 (3036.947)
  • From: Harold.Noffke at wpafb.af.mil (Harold Noffke)
  • Date: Fri, 30 Apr 2004 19:27:23 -0400 (EDT)
  • References: <c6s538$pkf$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Thomas:

By default, Mathematica displays all results to 6 significant digits. 
Therefore, it rounds to 6 significant digits.

To change the number of significant digits Mathematica displays (and
rounds to), press Ctl+Shf+O to popup the Option Browser, select either
Global or Notebook, and search for PrintPrecision.  Then highlight the
number 6, and change it (type over it) with your preferred precision
(say, 10).  Then click Apply, close the Option Browser, and
recalculate your expression.  You will now see results displayed (and
rounded) at 10 significant digits.

To see all of your results, use FullForm[result].  This will display
all the significant digits Mathematica keeps.  For this exercise, that
number will be $MachinePrecision (~16) decimal digits.

Regards,
Harold


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