Difference between revisions of "NPr Command"

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<noinclude>{{Manual Page|version=4.2}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude>
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<noinclude>{{Manual Page|version=5.0}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude>
 
{{command|probability}}
 
{{command|probability}}
;nPr [<Number n>, <Number r>]
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;nPr ( <Number n>, <Number r> )
 
:Returns the number of possible permutations without repetition of ''r'' elements out of a list of ''n'' elements.
 
:Returns the number of possible permutations without repetition of ''r'' elements out of a list of ''n'' elements.
:{{example| 1=<div><code><nowiki>nPr[10, 2]</nowiki></code> yields ''90''.</div>}}
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:{{example| 1=<code><nowiki>nPr(10, 2)</nowiki></code> yields ''90''.}}
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==CAS Syntax==
 
==CAS Syntax==
;nPr [<Number n>, <Number r>]
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;nPr ( <Number n>, <Number r> )
 
:Returns the number of possible permutations without repetition of ''r'' elements out of a list of ''n'' elements.
 
:Returns the number of possible permutations without repetition of ''r'' elements out of a list of ''n'' elements.
:{{example| 1=<div><code><nowiki>nPr[10, 2]</nowiki></code> yields ''90''.</div>}}
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:{{examples| 1=<div>
:{{example| 1=<div><code><nowiki>nPr[n, 3]</nowiki></code> yields ''- 3n² + 2n''.</div>}}
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:*<code><nowiki>nPr(10, 2)</nowiki></code> yields ''90''.
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:*<code><nowiki>nPr(n, 3)</nowiki></code> yields ''<math>\frac{n!}{(n-3)!}</math>''.</div>}}
 
{{Note|1= See also [[BinomialCoefficient Command|BinomialCoefficient command]].}}
 
{{Note|1= See also [[BinomialCoefficient Command|BinomialCoefficient command]].}}

Latest revision as of 11:17, 11 October 2017


nPr ( <Number n>, <Number r> )
Returns the number of possible permutations without repetition of r elements out of a list of n elements.
Example: nPr(10, 2) yields 90.


CAS Syntax

nPr ( <Number n>, <Number r> )
Returns the number of possible permutations without repetition of r elements out of a list of n elements.
Examples:
  • nPr(10, 2) yields 90.
  • nPr(n, 3) yields \frac{n!}{(n-3)!}.
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