Matrices

Okay so this week we learned matrices and started the aleks stuff on the computer. The first two sections of matrices were easy for me because I remember them from last year. Its going to be super hard to type out matrices because I don’t know how you can put more than one row in a bracket. :/

The basic part is finding out how big your matrices is: rows x colums
(rows go across and columns are up and down)

Ex 1: [ 2 4 6]
This matrix is a 1x3

To add matrices is very simple. You just add the corresponding numbers.

Ex 2: [ 4 2 4] + [ 7 3 6] = [ 11 5 10]

Super easy and subtraction is done the same way.

Ex 3: [ 8 3 2] – [ 5 4 1] = [ 3 -1 1]

Sorry all of my rows were 1, but I have no clue how else to do it!