Definition:Unit Matrix/Examples
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Definition
$3 \times 3$ Unit Matrix
The $3 \times 3$ unit matrix is as follows:
- $\mathbf I_3 = \begin{bmatrix}
1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \\ \end{bmatrix}$