Would there be any interest in a book explaining the mathematics of 2D and 3D vectors and Matrices with links to Babylon.js PG examples? If so I might write one.

This sounds like smthg I d happily read

@JohnK I think this would be an INCREDIBLE teaching tool to help people understand complex ideas with simple visual examples.

Iâ€™m fully supportive of this idea!

Sounds very useful! Have a look at this repo that came out last month as it has interesting visualizations for matrix multiplication (ie: dot product):

kenjihiranabe/The-Art-of-Linear-Algebra: Graphic notes on Gilbert Strangâ€™s â€śLinear Algebra for Everyoneâ€ť (github.com)

edit: also I followed this tutorial ( Learn WebGL â€” LearnWebGL (brown37.net)), which keeps building on concepts and I found section 8.3 the best with perspectives even to Camera frustum/near/far and seeing HOW the matrices math all came together and that was really rewarding. I found tinkering with shaders was a really fun way to learn about the math as well.