Difference between revisions of "NPr Command"

Revision as of 17:15, 7 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.

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.

Example:

nPr[n, 3] yields \frac{n!}{(n-3)!}.

Note: See also BinomialCoefficient command.

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 <noinclude>{{Manual Page|version=5.0}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude>
 {{command|probability}}
-;nPr [ <Number n>, <Number r> ]
+;nPr ( <Number n>, <Number r> )
 :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>}}
 ==CAS Syntax==
-;nPr [ <Number n>, <Number r> ]
+;nPr ( <Number n>, <Number r> )
 :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>}}
 :{{example| 1=<div><code><nowiki>nPr[n, 3]</nowiki></code> yields ''<math>\frac{n!}{(n-3)!}</math>''.</div>}}
 {{Note|1= See also [[BinomialCoefficient Command|BinomialCoefficient command]].}}