Calculate the center point of multiple latitude/longitude coordinate pairs

Question

Given a set of latitude and longitude points, how can I calculate the latitude and longitude of the center point of that set (aka a point that would center a view on all poi

Answer 1

If you wish to take into account the ellipsoid being used you can find the formulae here http://www.ordnancesurvey.co.uk/oswebsite/gps/docs/A_Guide_to_Coordinate_Systems_in_Great_Britain.pdf

see Annexe B

The document contains lots of other useful stuff

B