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Re: surprising comparison of Mathematica 5.2 and 7.0

• To: mathgroup at smc.vnet.net
• Subject: [mg111192] Re: surprising comparison of Mathematica 5.2 and 7.0
• From: "Bruno Campanini" <brunocam at libero.it>
• Date: Fri, 23 Jul 2010 07:11:27 -0400 (EDT)
• References: <i293uc$mck$1@smc.vnet.net>

"mathfanda" <KKratky at seznam.cz> wrote in message 
news:i293uc$mck$1 at smc.vnet.net...

> Dear Mathematica friends,
>
> the following program runs 4.7 times faster and uses 22.7 times less
> memory
> in Mathematica 5.2 than in Mathematica 7.0.
> Fortunately, it gives the same result.
[...]

My results:

7.0 for Microsoft Windows (64-bit) (November 11, 2008)
c[4]=-(38475/16384)
time=24.217
memory=142.09 MB

Winserver 2008 R2 64-bit, 4Gb RAM

Very bad indeed!

Bruno