From: Scott Worley <ScottWorley@ScottWorley.com>
Date: Mon, 31 Dec 2012 06:56:34 +0000 (-0800)
Subject: Explicitly bounds-check in angle_between()
X-Git-Url: http://git.scottworley.com/nt3d/commitdiff_plain/72eac64d07af484314745fd0e9466e0f94915684?ds=sidebyside;hp=72eac64d07af484314745fd0e9466e0f94915684

Explicitly bounds-check in angle_between()

This avoids introducing NaNs due to numerical error while measuring
extreme angles -- angles near 0 or pi radians.
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