Difference between revisions of "NPr Command"
From GeoGebra Manual
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: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>}} | :{{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> | + | :{{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]].}} | {{Note|1= See also [[BinomialCoefficient Command|BinomialCoefficient command]].}} | ||
Revision as of 09:43, 15 October 2015
- 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.
- Example:
nPr[10, 2]yields 90.
- Example:
nPr[n, 3]yields \frac{n!}{(n-3)!}.
Note: See also BinomialCoefficient command.
