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MathGroup Archive 2005

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Re: faster Interpolation?

  • To: mathgroup at
  • Subject: [mg58867] Re: faster Interpolation?
  • From: mike_in_england2000 at
  • Date: Thu, 21 Jul 2005 15:46:00 -0400 (EDT)
  • References: <dbnica$hhk$>
  • Sender: owner-wri-mathgroup at

Alessandro Strumia wrote:
> hello,
> I need to compute a linear interpolation of a single-parameter function
> defined on an equally-spaced grid, and I do not need its derivatives.
> The ListInterpolation function of Mathematica can do this and much more,
> but it is not fast enough for my purposes:
> it takes almost 10^-3 Second on my computer,
> and I need to compute the function in about 10^9 points.
> The total running time would be about one month: too slow!
> So I wonder if there is a faster alternative.


Out of interest what is the speed and amount of RAM on your machine?


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