Re: [math-fun] Surveying a dig (or graphing on blank paper)

On 1/20/07, Fred lunnon <fred.lunnon@gmail.com> wrote:

But surely a better solution to this engineering problem would be to use distance geometry. Establish base points B_i for i = 1,2,3,4 at known locations on your site --- not concyclic and no three collinear --- for example, at the corners of a square enclosing it.

Noooh! NOT the corners of a square (which are concyclic, and so linearly dependent ...) WFL