>>And if you store the Latitude and Longitude in radians, then it becomes
>
>I just want to make sure I understand this "store the Latitude and Longitude in radians" terminology. Are there two ways of storing Latitude on Longitude? I always thought there is only one set of coordinates to identify a location.


Yes, but the coordinates (lat/lon) can be expressed in both degrees and radians

It would be faster for the calculations - since all the formulae work on radians

360 degrees = 2 * PI() radians

You can store the coordinates in either degrees or radians