[extropy-chat] Rational Trigonometry

[kevinfreels.com]

I read a report the other day about Norman Wildberger's "Rational Trigonometry" which supposedly does away with sines, cosines, and tangents and allows for using algebra and simple arithmetic. It is also supposedly more accurate. I hadn;t seen anyone here comment on this and I was wondering if anyone has had a chance to review his work.
 
 
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