(06-17-2017 06:10 PM)Dieter Wrote: (06-17-2017 05:38 PM)Matt Agajanian Wrote: I'm sorry. It seems my earler post was quite unclear.

Yes, I've rather aware that R->P operations return both numerator and denominator for the revised GCN formula.

Not quite. While R–>P can be used to calculate the nominator it does not help with the denominator. OTOH it can be used to determine the arctan of the quotient.

(06-17-2017 05:38 PM)Matt Agajanian Wrote: But, I intended to ask about the four latitude, longitude, and delta values.

OK – sorry if I have to ask again, English is not my native language, but... what do you want to ask about these values?

Phi1 and 2 are the two latitudes and Lambda1 and 2 are the longitudes, resp. ΔLambda their difference.

Dieter

Thank you. Dieter, your language skills are excellent. It's my misunderstanding of the equation that caused confusion. Now I understand the variables.