Triangulation Problem

*Subject*: [mg2968] Triangulation Problem*From*: techie at io.org (david hoare)*Date*: 17 Jan 1996 04:45:53 -0600*Approved*: usenet@wri.com*Distribution*: local*Newsgroups*: wri.mathgroup*Organization*: Internex Online, Toronto*Sender*: mj at wri.com

OK...Here's what should be an easy one - - well not for me... I am looking for the trigonometric / algebreic formulae one would use to triangulate an unknown position, knowing 3 fixed points and the respective distances to the unknown point. (make sence?) Oh - in 3 dimensional space. And actually, the reverse operations would be handy too...ie: given a known central point, AND 3 other fixed points, how to find the lengths of the lines required to meet at that first point, in 3D. It's for a program I'm writing, and it's been a while since I've done this sort of thing - - my math has left me! Any Help would be GREATLY appreciated!! Thanks, David. techie at io.org