I am not acquainted with astronomy at all. I am developing an computer application which works on TLE data from space-track.org, and calculates things based on them. I need to find distance between two satellites from their TLE data. Now, I know there is an exact same question in this link:- How to calculate distance between two satellites using their TLE data?
But, being a person not aquainted with astronomy, I didn't get what was the answer there at all. If someone can point me towards directly code written by someone to do the same, it would be greatly appreciated. Thank you!