Re:Why is learning functional programming so damned hard? (2...
by shagie on Sunday August 15, 2021 @11:06PM
(#28194591)
We use similar approaches with terrestrial navigation too.
At the intersection of Main and Oak, go two blocks east. The building will be on the north side of the street.
Those instructions are the same no matter what direction the person is facing or direction they came from.
However, on a ship, the absolute positions of NSEW (relative to the Earth) aren't as useful as the ship may be heading any direction (and may be going forward or reverse). So a different absolute coordinate system is use - fore, aft, port, starboard.
At the intersection of Main and Oak, go two blocks east. The building will be on the north side of the street.
Those instructions are the same no matter what direction the person is facing or direction they came from.
However, on a ship, the absolute positions of NSEW (relative to the Earth) aren't as useful as the ship may be heading any direction (and may be going forward or reverse). So a different absolute coordinate system is use - fore, aft, port, starboard.