Difference between revisions of "NPr Command"
From GeoGebra Manual
Line 1: | Line 1: | ||
<noinclude>{{Manual Page|version=4.2}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude> | <noinclude>{{Manual Page|version=4.2}}[[Category:Manual (official)|{{PAGENAME}}]]</noinclude> | ||
{{command|probability}} | {{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. | :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>}} | ||
+ | |||
==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. | ||
:{{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 ''n³ - 3n² + 2n''.</div>}} | :{{example| 1=<div><code><nowiki>nPr[n, 3]</nowiki></code> yields ''n³ - 3n² + 2n''.</div>}} | ||
{{Note|1= See also [[BinomialCoefficient Command|BinomialCoefficient command]].}} | {{Note|1= See also [[BinomialCoefficient Command|BinomialCoefficient command]].}} |
Revision as of 11:20, 10 July 2013
- 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 n³ - 3n² + 2n.
Note: See also BinomialCoefficient command.