Matrices (Jump to: Lecture | Video )


An array of numbers is called a matrix.

Figure 1.

Here, we have some data organized in a table. It could be rewritten in a matrix:

Figure 2.

Matrices are usually described by their dimensions.

Figure 3.

Each entry in a matrix is called an element.

Figure 4.

Here are three examples of matrices with different dimensions:

Figure 5.

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