MathGroup Archive 2002

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Precision and Rounding

  • To: mathgroup at
  • Subject: [mg33237] Precision and Rounding
  • From: <bradamanteus at>
  • Date: Sat, 9 Mar 2002 18:05:24 -0500 (EST)
  • Sender: owner-wri-mathgroup at

There must be a simple answer to this:

I'm producing a large output file that takes a long time to compute, and I
think this is partly because Mathematica always has my output as 14 decimal
places, and I don't need such accuracy. Is there a way to reduce calculation
time by reducing the precision of all calculations in my model. Rounding
with N doesn't work.

Also, I'm told that I can reduce the time of my program by looking at a
debugging tool that tells me how long the program spends on certain parts of
my code. What is this?


Leanne Ussher

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