@aral As an engineer, they look the same for me.
If the error is small enough, they are the same thing.
@aral That and other extremely subtle code problems, like getting your conditions backwards or minor typos.
@aral Oh, and the oft-dreaded off-by-one issues.
I find it fascinating there was an acedemic paper fixing these off-by-one problems in the Bentley-Ottman algorithm which can be used to figure out which pixels should be drawn over in order to fill a shape from vector graphics.
This is my personal Mastodon.