Linear algebra explained in four pages by Ivan Savov.
From the introduction:
This document will review the fundamental ideas of linear algebra. We will learn about matrices, matrix operations, linear transformations and discuss both the theoretical and computational aspects of linear algebra. The tools of linear algebra open the gateway to the study of more advanced mathematics. A lot of knowledge buzz awaits you if you choose to follow the path of understanding, instead of trying to memorize a bunch of formulas.
A rather dense four pages. 😉
It is based on the No Bullshit: Guide to Math and Physics.
The general tone of comments on the No Bullshit Guide… are positive, mostly very positive but I haven’t seen any professional reviews of it.
It you know of any professional reviews, please drop me a note.
I first saw this in Christophe Lalanne’s A bag of tweets / December 2013.