# Numbers | Maths with Lemon

Source: https://mathswithlemon.io/aa-functions-remainder.html


#### Matrices


##### What you have to know:

- You must be able to manipulate algebraic expressions. (If not, check this lesson)
- You must be able to manipulate exponential expressions. (If not, check this lesson)

##### Key Points

- 1. Basic matrices operations
- 2. How to multiply matrices. Watch this video

#### Matrix equations


##### What you should know

- You must be able to solve algebraic equations. (If not, check this lesson)
- You must be able to solve system of equations. (If not, check this lesson)
- 1. Watch the video:

#### Eigenvalues and eigenvectors


##### What you have to know:

- How to calculate the determinant of a matrix

##### Key Points

- 1. Watch the video:

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