Manuals/calci/MATRIXIDENTITY

MATRIXIDENTITY(n)

$n$ is the order of the matrix.

Description

This function shows the identity matrix of a given matrix.
In $MATRIXIDENTITY(n)$ , $n$ is the Order of identity matrix.
Identity matrix is also called Unit matrix.
Identity matrix of size n is the nxn square matrix with ones on the main diagonal and zeros on the other entries.
Identity matrix is denoted by $I_{n}$ .
$I_{1}=[1]$ ,

$I_{2}={\begin{bmatrix}1&0\\0&1\end{bmatrix}}$ , $I_{3}={\begin{bmatrix}1&0&0\\0&1&0\\0&0&1\end{bmatrix}}$ ...... $I_{n}={\begin{bmatrix}1&0&0\cdots &0\\0&1&0&\cdots &0\\0&0&1&\cdots &0\\\vdots &\ddots &\vdots \\0&0&0&\cdots &1\end{bmatrix}}$