Identity Command

Identity[ <Number n> ]

Gives the identity matrix of the given order.

Example:

Identity[3] yields the matrix \begin{pmatrix} 1&0&0\\ 0&1&0\\ 0&0&1

\end{pmatrix}.

Note:

• If A is a square matrix of order n, A^0 yields the same as Identity[n].
• This command is not dynamic. For example the result of Identity[a] will not change if a is changed.

CAS Syntax

Identity[ <Number> ]

Gives the identity matrix of the given order.

Example:

Identity[3] yields the matrix \begin{pmatrix} 1&0&0\\ 0&1&0\\ 0&0&1

\end{pmatrix}.

Note:

• If A is a square matrix of order n, A^0 yields the same as Identity[n].
• This command is not dynamic. For example the result of Identity[a] will not change if a is changed.