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[DPRG] math I once knew

Subject: [DPRG] math I once knew
From: rten at new.metronet.com rten at new.metronet.com
Date: Fri Dec 20 12:04:01 CST 2002

This is an incredible thread! Absolutely NO ONE can fault the DPRG
experience base, and I revel in how helpful everyone is. If someone makes
a goof as I have, it is caught and corrected. My most important maxim:
  **No one, without exception, is qualified to operate open loop.**
Ralph

On Fri, 20 Dec 2002, Eric Sumner wrote:

> --- Kipton Moravec <kip at kdream.com> wrote:
> > If the angle goes through 0 through 90 degrees, then you reflect for the
> > other 3 quadrants.
> > (X,Y), (-X,Y), (X,-Y), (-X,-Y)
>
> Actually, if you include the points
> (Y,X), (-Y,X), (Y,-X), (-Y,-X)
> you get the results with calculating only 0 through 45 degrees
>
>   -- Eric Sumner
>
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