Understanding the View Matrix - 3D Game Engine Programming

Lecture 16: Projection matrices and least squares | Linear Algebra | Mathematics | MIT OpenCourseWare

Subspace projection matrix example

Projection is closest vector in subspace

Suppose P is the projection matrix onto the subspace S and Q is the projection onto, the orthogonal complement 𝐒^⊥. What are P Q and P Q ? Show that P-Q is its own inverse. | Numerade