What is northern most point that will be reached when following a great circle? Computed with Clairaut's formula. The southern most point is the antipode of the northern-most point.
Usage
gcMaxLat(p1, p2)
Arguments
p1
longitude/latitude of point(s), in degrees; can be a vector of two numbers, a matrix of 2 columns (first one is longitude, second is latitude) or a spatialPoints* object
p2
as above. Should have same length as p1, or a single point (or vice versa when p1 is a single point