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Re: spherical geometry



David Bowman wrote:

The formula I prefer [is] .....

Now that the cat is out of the bag:

A number of well-behaved expressions for solving this
problem can be found in Ed Williams' _Aviation Formulary_ :
http://williams.best.vwh.net/avform.htm

It's an awesome piece of work. Check it out. There's a
ton of good stuff there.


If you want another spherical geometry exercise,
rederive Clairaut's formula.
http://williams.best.vwh.net/avform.htm#Clairaut