Difference between revisions of "NPr Command"
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;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. | :Returns the number of possible permutations without repetition of ''r'' elements out of a list of ''n'' elements. | ||
| − | :{{example| 1= | + | :{{example| 1=<code><nowiki>nPr(10, 2)</nowiki></code> yields ''90''.}} |
==CAS Syntax== | ==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. | :Returns the number of possible permutations without repetition of ''r'' elements out of a list of ''n'' elements. | ||
| − | :{{ | + | :{{examples| 1=<div> |
| − | : | + | :*<code><nowiki>nPr(10, 2)</nowiki></code> yields ''90''. |
| + | :*<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)!}.
Note: See also BinomialCoefficient command.
