gunella Fri, 8 Sep 2000 10:25:38 -0400 (EDT)
The method of thre points is explained by Hyginus Gromaticus (III century ) , by Nonius in his "De navigatione", by Clavius (That explains the Nonius method ) and by Kircher. The simplest is that of Kircher. A. Gunella
---------- Da: Allan Pratt
