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Date: Mon, 4 Jan 2016 14:46:49 -0500
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From: DJ Delorie <dj AT delorie DOT com>
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Subject: Re: [geda-user] Merging stuff. How to make it happen
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> With regards rewriting geometry functions, I'd be interested in a why - if
> they already worked. The old code looking ugly would be a fine reason, just
> be extra sure the replacements will be well behaved ;)

They were being duplicated all over the place.  We discussed this a
while back and agreed that collecting all the 2D/3D generic math
functions in one spot made sense.