matrix multiplication

E-Math: How To Multiply Matrices (Video)

This is my first attempt this year to produce a video. Should the response be good, I will use video to share more tips and strategies with my audience, so please leave me a comment.

Please pardon me the 'echo' effect in my introduction and also the low resolution. I was using my new logitech webcam :D

I'm working towards producing better quality videos. Share tips on this if you have any. Would appreciate it.

For more posts on matrix, please refer to the related posts below.

I look forward in hearing your comments and the answer to the question in the video.

E-Math: How To Multiply Matrix (Know Your Rs & Cs)

Another important Tip for students taking GCE O Level Elementary Mathe (E-Math):

Unlike multiplication of numbers, multiplication of matrix requires some prep work.

First, you have to check the feasibility of the 2 Matrices which you are multiplying together. You must know the order of each matrix i.e Number of Rows x Number of Columns (I always call it RC, Resident Committee, Remote Control etc...)
Next, you have to know the order of your answer before you go ahead and find the answers.

I am using the following question to illustrate How To Multiply Matrix step by step.

E-Math: Order of Matrix

Another Tip for students taking GCE O Level Elementary Math (E-Math):

Though order of Matrix is a rather small part of the chapter, it is still essential that you know how to list down the order of any matrix which will be used in operation of matrix.(Especially multiplication of matrix)

In this post, I will provide some tips on how to list down the order of any matrix which is the Number of Rows x Number of Columns.