| From: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | "Strauss, Randy (ARC-AF)[SGT, INC]" <randolph(dot)a(dot)strauss(at)nasa(dot)gov>, "pgsql-docs(at)lists(dot)postgresql(dot)org" <pgsql-docs(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Lack of detailed documentation |
| Date: | 2020-04-23 00:31:14 |
| Message-ID: | CAKFQuwbGoOZ=HKZq+N4tNyxyeX19eWFUWr4AWe50rhu63TsEGw@mail.gmail.com |
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| Lists: | pgsql-docs |
On Wed, Apr 22, 2020 at 4:36 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Surely Lockhart[1] got this
> definition from someplace, though, and didn't invent it out of thin air.
>
I actually viewed quite a few YouTube math videos between then and now and
looking at it now it seems familiar.
It is basically treating the points as if they were a representation of
complex numbers with x being real and y being imaginary.
https://en.wikipedia.org/wiki/Complex_number (Multiplication and Division
sections)
David J.
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