Visualizing quaternions | Ben Eater

Explaining how quaternions, a four-dimensional number system, describe 3d rotation.

My last math class in college: Modern Algebra

After deciding not to major in math, I still took one last math class in the Fall of 1985: Modern Algebra. In the first session, Professor G...

It's been a while since I was excited to read a #mathematics textbook. Yesterday I bought this book from a thrift store. The book is excellently written and helps make #AbstractAlgebra seem more fun and accessible while keeping mathematical rigour. It also includes a great, short history of modern algebra in the first chapter. #math #maths #ModernAlgebra