Difference between revisions of "Identity Command"

Revision as of 21:16, 9 March 2013

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].

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].

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-<noinclude>{{Manual Page|version=4.0}}</noinclude>
+<noinclude>{{Manual Page|version=4.2}}</noinclude>
 {{command|cas=true|vector-matrix}}
 ;Identity[ <Number n> ]