Salgood Sam aka Max DouglasPosted without further comment 🔻
Raven Luni@salgood Those angles are only 90 degrees at an infintesimally small point where the line meets the curve so you could argue they dont exist
Erwin Rossen 🔸@RavenLuni @salgood Well, that's the definition of an angle, right? An infinitesimal distance away, there is no angle anymore.
@erwinrossen @salgood I always saw it as the intersection of 2 vcetors but I guess youre right
Connor Cadellin@RavenLuni @erwinrossen @salgood i think this is drawn using a polar coordinate space rather than a Cartesian space. In a polar sense, the lines are all either moving longitudinally or laterally, so the 90 degree rule checks out.