Matrix Introduction

Dimension

• a

• b

• c

• d

Value of element a₂₃

• -2

• -1

• 7

• 15

What would two matrices need to be considered 'equal'?

• The same dimensions and different element values

• The same dimension and the same element values

• Two matrices can never be equal

• two matrices are 'equal' when they are added together to create a matrix of only "0's"

Determine the type of the matrix

• Upper Triangular Matrix

• Identity Matrix

• Diagonal Matrix

• Lower Triangular Matrix

• Row Matrix

Determine the type of the matrix

• Upper Triangular Matrix

• Identity Matrix

• Diagonal Matrix

• Lower Triangular Matrix

• Row Matrix

What is a Matrix?

• An equation of over 5 numbers or symbols 

• A set of numbers in rows and columns

• A method of finding the n^th value of a series

• A complicated number system

In Matrix R (pictured) what is the value of element R₃₂

• 8

• 9.01

• 6

• 1

In Matrix R (pictured) what is the value of element R₁₃

• 8

• 9.01

• 3

• 1

What is the name of each entry of a matrix?

• Row

• Element

• Dimension

• Rectangle

How many rows are in a 7 x 3 matrix?

• 7

• 3

• 21

• 10