Today I learned that there are way too many coordinate systems, and that I’m an idiot (but that was already well-established). I have also learned to not trust graphics tutorials, but the reasons for that won’t become apparent until the end of this article. There are two types of coordinate systems: left-handed and right-handed coordinate systems. By convention, most everyone in math and science uses right-handed coordinate systems with positive x going to the right, positive y going up, ...
