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Lessons on Matrices

 

 

Matrices (singular: matrix, plural: matrices) have many uses in real life. One application would be to use matrices to represent a large amount of data in a concise manner so that we can process the data in various ways more conveniently.

For example, the sales of different types of pre-packed food from 3 stalls during a given period of time could be shown in the form of a table here:

Stall A

Stall B

Stall C

Packs of noodles sold

36

21

43

Packs of rice sold

27

56

35

This table can be represented as a matrix:

This matrix could then be added with another that represents the sales for a different period of time to get the total for the two periods of time, etc.

 

 

The topics covered in these lessons on matrices are:

Describing Matrices

Equal Matrices

Types of Matrices

Addition and Subtraction of Matrices

Scalar Multiplication of Matrices

Multiplying Two Or More Matrices (includes video)

Determinant and Inverse of a Matrix

Solving Simultaneous Equations Using Matrices

Representing Information Using Matrices

 


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