Difference between revisions of "Identity Command"
From GeoGebra Manual
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{{command|cas=true|vector-matrix}} | {{command|cas=true|vector-matrix}} | ||
| − | ;Identity[ <Number | + | ;Identity[ <Number> ] |
:Gives the identity matrix of the given order. | :Gives the identity matrix of the given order. | ||
:{{example|1=<div><code><nowiki>Identity[3]</nowiki></code> yields the matrix ''<math>\begin{pmatrix} | :{{example|1=<div><code><nowiki>Identity[3]</nowiki></code> yields the matrix ''<math>\begin{pmatrix} | ||
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\end{pmatrix}</math>''.</div>}} | \end{pmatrix}</math>''.</div>}} | ||
| − | {{note|1= | + | {{note|1=If ''A'' is a square matrix of order ''n'', <code><nowiki>A^0</nowiki></code> yields the same as <code><nowiki>Identity[n]</nowiki></code>.}} |
| − | If ''A'' is a square matrix of order ''n'', <code><nowiki>A^0</nowiki></code> yields the same as <code><nowiki>Identity[n]</nowiki></code>. | ||
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==CAS Syntax== | ==CAS Syntax== | ||
;Identity[ <Number> ] | ;Identity[ <Number> ] | ||
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\end{pmatrix}</math>''.</div>}} | \end{pmatrix}</math>''.</div>}} | ||
| − | {{note|1= | + | {{note|1=If ''A'' is a square matrix of order ''n'', <code><nowiki>A^0</nowiki></code> yields the same as <code><nowiki>Identity[n]</nowiki></code>.}} |
Revision as of 09:08, 21 May 2013
- 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^0yields the same asIdentity[n].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^0yields the same asIdentity[n].
