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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Spherical Trig
From: Dan Allen
Date: 2005 Apr 6, 08:44 -0600
From: Dan Allen
Date: 2005 Apr 6, 08:44 -0600
On Apr 5, 2005, at 7:59 PM, Bill wrote: > Focusing on the words "is between" > does that literally mean the lower limit can approach 180d and the > upper > limit approach 540d, or can the sums actual equal either 180d or 540d? The former in practice. The limit goes to 180 but on any physical 3D surface it will never be 180, always greater (or less than 540). A sufficiently small triangle becomes flat and then the angles are like those in math textbooks - they equal 180 degrees. Dan
