Difference between revisions of "Identity Command"
From GeoGebra Manual
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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[Order n]: Returns the identity matrix with the given order | + | ; Identity[Order n]: 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[Order n]: Returns the identity matrix with the given order. |
Revision as of 13:43, 27 July 2011
- Identity[Order n]
- 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^0
produces the same matrix asIdentity[n]
.
CAS Specific Syntax
In CAS View you can use the same syntax:
- Identity[Order n]
- Returns the identity matrix with the given order.