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Re: faster Interpolation?

• To: mathgroup at smc.vnet.net
• Subject: [mg58867] Re: faster Interpolation?
• From: mike_in_england2000 at yahoo.co.uk
• Date: Thu, 21 Jul 2005 15:46:00 -0400 (EDT)
• References: <dbnica$hhk$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

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.

<SNIP>

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

Mike