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Recursion is the root of computation since it trades description for time.

tech / sci.math / Conic Sections

Conic Sections

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https://www.novabbs.com/tech/article-flat.php?id=61215&group=sci.math#61215

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From: earle.jo...@comcast.net (Earle Jones)
Subject: Conic Sections
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by: Earle Jones - Tue, 1 Jun 2021 23:54 UTC

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There is an interestng article on conic sections here:

https://sydney4.medium.com/pells-equation-and-the-chakravala-method-d4587f141b40

I direct the attention of AP to this data, which was well-known to ancient Greek mathematicians.

Cheers!

earle
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