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MathGroup Archive 2002

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Re: Could someone verify a long Pi calculation in Version 4 for me?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg36806] Re: Could someone verify a long Pi calculation in Version 4 for me?
  • From: zeno <zeno1234 at mindspring.com>
  • Date: Thu, 26 Sep 2002 04:57:11 -0400 (EDT)
  • References: <amjvav$g18$1@smc.vnet.net> <ammfi5$lk7$1@smc.vnet.net> <amris4$576$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com


So would it take about the same amont of time for the complete printout
of digits? Of course it would take a few additional seconds to format
the output...

Or does Mathematica take alot less time when it truncates the output?

In article <amris4$576$1 at smc.vnet.net>, Tom Burton <tburton at brahea.com>
wrote:

> Hello,
> 
> On 9/23/02 12:19 AM, in article ammfi5$lk7$1 at smc.vnet.net, "zeno"
> <zeno1234 at mindspring.com> wrote:
> 
> > Could you tell me the CPU you used and its speed etc...i am curious,
> > thanks. It would be interesting to compare Version 4s Pi performance to
> > other programs out there.
> 
> I used one processor of a dual 1GH Mac and got the same answer with the
> following speed:
> 
> $Version
> 4.2 for Mac OS X (June 4, 2002)
> oldmax = $MaxPrecision
>      6
> 1. 10
> $MaxPrecision = Infinity
> Infinity
> With[{n = 2^26}, Timing[
>    pd = RealDigits[N[Pi, n + 1], 10, 20,
>       19 - n]; ]]
> {28794.1 Second, Null}
> MaxMemoryUsed[]
> 512055204
> pd
> {{3, 3, 8, 6, 3, 2, 2, 0, 8, 9, 6, 2, 2, 3,
>  
>    4, 0, 9, 8, 0, 3}, -67108844}
> 
> Tom Burton


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