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*Identity matrix is also called as Unit matrix.
*Identity matrix is also called as Unit matrix.
*The identity matrix is the identity for matrix multiplication.
*The identity matrix is the identity for matrix multiplication.
*The form of identity matrices are:
*The form of identity matrices are
<math> I_1=\begin{bmatrix}
<math> I_1=\begin{bmatrix}
1 \\
1 \\
0 & 0 & 0 & \cdots & 1
0 & 0 & 0 & \cdots & 1
\end{bmatrix}</math>
\end{bmatrix}</math>
==Examples==
*1.MATRIX("identity")
{| class="wikitable"
|-
| 1 || 0 || 0
|-
| 0 || 1 || 0
|-
| 0|| 0 || 1
|}
*2.MATRIX("identity",6)
{| class="wikitable"
|-
| 1 || 0 || 0 || 0 || 0 ||0
|-
| 0 || 1 || 0 || 0 || 0 || 0
|-
| 0|| 0 || 1 || 0 || 0 || 0
|-
| 0 || 0 || 0 || 1 || 0 || 0
|-
| 0 || 0 || 0 || 0 || 1 || 0
|-
| 0 || 0 || 0 || 0 || 0 || 1
|}