From: Ash Morgan <ashleymo@scf.usc.edu>
Subject: Re: Triangulation Problem
To: rusin@math.niu.edu (Dave Rusin)
Date: Fri, 31 Mar 1995 12:06:07 -0800 (PST)

Dave--

	Thanks for all your help on the problem.  I followed your
	construction and I think everything checks out how you typed it.
	The purpose for finding the coordinates is for my robotics
	research.  A robot will be placed inside a triangle with IR beacons
	at each vertex.  The robot will have a servo motor mounted on top
	and can sense when it's pointing at the IR beacons.  From this we
	can measure the inside angles which you called a and b.  From that
	information I need to calculate the coordinates of the robot so I
	can use that information in mapping and navigation.  

	When I had first attempted the problem I came very close to your
	solution.  I knew that the angles should uniquely determine your
	place in the triangle, so I decided to hold one angle constant and
	see what path it would trace.  However, I thought the path was more
	parabolic than circular and the form I had the equation in which
	described the curve was not recognizable as a circle.  Anyway,
	thanks again for your help.

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