A quaternion is a (more-commonly known?) type of spinor which is often used in 3d graphics in matrix form to perform rotations. Spinors are difficult to descri

A quaternion is a (more-commonly known?) type of spinor which is often used in 3d graphics in matrix form to perform rotations. Spinors are difficult to describe in an HN post since they require a good amount of linear algebra, but my favorite explanation is probably here: http://www.weylmann.com/spinor.pdf http://www.weylmann.com/spinor.pdf