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Chebyshev polynomials, built-in / OctaveForge functions

From: edA-qa mort-ora-y
Subject: Chebyshev polynomials, built-in / OctaveForge functions
Date: Wed, 15 Sep 2004 21:11:05 +0200
User-agent: Mozilla Thunderbird 0.6 (X11/20040502)

I've created two functions, one to generate the Chebyshev polynomials (with the symbolics library) and one to calculate an approximation polynomial for a given function. My work is at the link below:

My question is how much of this is actually already provided by the standard functions and by the OctaveForge symbolics package? There are a few cheb* functions, but I didn't really understand what they were doing.

Can somebody check what I've done, and maybe say how I can use the internal functions to accomplish the same thing? (or if anybody notices an error, please let me know -- I do actually need to use this function :)

edA-qa mort-ora-y
Idea Architect

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