Difference between revisions of "Identity Command"
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<noinclude>{{Manual Page|version=4.0}}</noinclude> | <noinclude>{{Manual Page|version=4.0}}</noinclude> | ||
{{command|vector-matrix}} | {{command|vector-matrix}} | ||
| − | ; Identity[ | + | ; Identity[Number]: Returns the identity matrix with the given order. |
:{{Example|1= <code>Identity[3]</code> gives you the matrix ''{{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}''.}} | :{{Example|1= <code>Identity[3]</code> gives you the matrix ''{{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}''.}} | ||
:{{Note|1=If ''A'' is a square matrix of order ''n'', <code>A^0</code> produces the same matrix as <code>Identity[n]</code>.}} | :{{Note|1=If ''A'' is a square matrix of order ''n'', <code>A^0</code> produces the same matrix as <code>Identity[n]</code>.}} | ||
==CAS Specific Syntax== | ==CAS Specific Syntax== | ||
In [[CAS View]] you can use the same syntax: | In [[CAS View]] you can use the same syntax: | ||
| − | ;Identity[ | + | ;Identity[Number]: Returns the identity matrix with the given order. |
Revision as of 10:58, 16 August 2011
- Identity[Number]
- Returns the identity matrix with the given order.
- Example:
Identity[3]gives you the matrix {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}.
- Note: If A is a square matrix of order n,
A^0produces the same matrix asIdentity[n].
CAS Specific Syntax
In CAS View you can use the same syntax:
- Identity[Number]
- Returns the identity matrix with the given order.
