Here's an example of what I want to figure out:
Device A is at 40.7128 / -74.0060 (lat/lon)
Location B is at 40.730610 / -73.935242
Radius = 10 miles
And the question: Is Device A within the radius around Location B?
I don't care about the language or technology, just want to get the job done. I know some Python, JS, and Java.
Anyone know a good/efficient way to approach this?