People around the world memorize the most common values (30, 45 and 60 degrees) for sin and cos in different order. Some memorized sin values first and others cos values firsts.

There's probably no underlying reason for it, between nationalities, but it is as it is.

Submitted September 06, 2022 at 03:41AM by Ibn__K4ldun https://ift.tt/7WOxyhz