Learn some of the basic things you could do if you were in The Matrix. Addition, subtraction, kung-fu, etc.
You will be able to multiply matrices. Duration_6_44
For history buffs, here's a biography of the person most associated with matrices as we study them. Interestingly, he joins the the illustrious group of mathematicians who were lawyers by day and put on the superhero cape of mathematician by night. Being a lawyer was just a way to pay the bills.
Duration_However long it takes to read the thing
You will be able to multiply matrices. Duration_11_50
You will be able to multiply matrices. Duration_10_25
You will be able to multiply matrices. Duration_7_06
A slightly soporific video on using matrix multiplication to perform a 90-degree rotation of a triangle in the coordinate plane. Maybe you'll see something like this in the very near future. Duration_5_54
Algebra II 3 (B) solve systems of three linear equations in three variables by using Gaussian elimination, technology with matrices, and substitution