Trigonometry?

Thank you, Chris, for starting this forum. Will be able to do more with this when I return home this week from out-of-town work.

I would like to suggest a trigonometry section. One of the problems in Surveying that continues to intrigue me is the Three-Point Resection. This problem concerns finding the coordinates of an unknown point, given the angles it makes with three known points. There are several methods for solving this problem and I am always on the lookout for more.

Gaflin,
I had a cave-r friend who use to talk about determining his position under ground. We were programmers (1979). He wrote an assembler program to calculate his path from measurements he took during a caving trip. His program was not fast or was in a loop. It consumed 100% of the CPU for a few hours, stopping hundreds of other users from getting their jobs done. He was called on the carpet and left shortly thereafter.

I found the problem interesting, thinking of it under the term 'propagation of errors'. I never got any data from him, unfortunately.

Please post some information about the 3-point resection problem and solution.
Robert