MathStudio  Blog  Share  Manual  Forums  Support  SpaceTime is now MathStudio! 
      
      
 
       Download Manual

Space Space Space
ELEMENTARY

ALGEBRA

BASIC

CALCULUS

CAS

DATA

GRAPHING

MANUAL

MATRIX

NUMBER

PLOT

SCRIPTING

SPECIAL

SPECIAL POLYNOMIALS

STATISTICAL

TRIGONOMETRIC

VECTOR CALCULUS
  nPr(n, r)
Returns the number of permutations of a subset of r elements from a set of n elements.

nPr(n,r) = n! / (n-r)!


References
http://mathworld.wolfram.com/Permutation.html
http://en.wikipedia.org/wiki/Permutation

Related Functions
Factorial, nCr





Copyright © 2011 Pomegranate Software.  All rights reserved.