NPr Command
From GeoGebra Manual
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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.
- 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)!}, which is equal to n³ - 3n² + 2n.
Note: See also BinomialCoefficient command.
