Are you sick of learning parrot fashion? Your teachers show you some procedure which you essentially just memorise... yes it's probably all you need to pass your exams, but it's a journey that for many, leaves them feeling mystified!
This video tutorial is all about visualising the geometric relationships of XYZ axes combined rotations. It's all about triangles! How does one triangle effectively rotate another triangle? Vector relationships can be considered linear in terms of scaling and adding vectors together, but trigonometric functions are non-linear, and yet the subject as a whole is often referred to as linear algebra.