Operation On Matrices
Chapter Name : Matrices |
Sub Topic Code : 104_12_03_04_06 |
Topic Name : Operation On Matrices |
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Sub Topic Name : Properties Of Multiplication Of Matrices |
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Introduction
There are three properties of matrix multiplication. They are associative law, distributive law and the existence of multiplicative identity.
Pre-Requisites:
Addition of matrices, Multiplication of matrices, Order of Matrix
Activity:
Observe how using the properties make it simpler to find products of matrices of data.
Real Life Question:
Do the properties of matrix multiplication make it easier to calculate the product of a set of matrices?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Order of matrix | The number of rows and columns in the matrix ; m (rows) x n (columns). |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Data records | Observe how the properties of matrix multiplication are used. |
Real life uses :
Finding revenue/costs from sales/expenses.
Practical examples around us
| Examples | Explainations |
|---|---|
| Use in totaling | Handy to find products of more than two matrices |
What you learn in Theory:
The properties of matrix multiplication.
What you learn in Practice:
To use the properties to calculate amounts for records and book keeping.