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From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: comp.lang.forth
Subject: Re: embedded forth
Date: Mon, 30 Jan 2017 11:04:19 -0800
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ctmalan@gmail.com writes:
> There is also a Newton method for calculating sin and cos.

If you have division, rational approximations can do better than
polynomials of similar size, especially around complex poles as Albert
mentions.