
Projective space
Projective space is a mathematical concept that extends the idea of ordinary space by adding "points at infinity." Imagine a flat surface (like a piece of paper); projective space allows us to consider lines that extend forever and where parallel lines eventually meet at a point at infinity. This concept is used in various fields, such as geometry, computer graphics, and physics, to help understand perspectives and transformations. It effectively changes how we view shapes and spaces, making it possible to analyze properties that would be difficult or impossible in conventional dimensions.