Permutations, Combinations - Sharp W Series Operation Manual

Permutations, Combinations

T his function finds the number of different possible orderings in selecting
r objects from a set of n objects. For example, there are six different
ways of ordering the letters ABC in groups of three letters—ABC , AC B,
BAC , BC A, C AB, and C BA.
T he calculation equation is
T his function finds the number of ways of selecting r objects from a set of
n objects. For example, from the three letters ABC , there are three ways
we can extract groups of two different letters—AB, AC , and C B.
T he calculation equation is
<Example>
6
6
A P P L IC AT IO N S:
Used in statistics (probability calculations) and in simulation hypoth-
eses in fields such as medicine, phar maceutics, and physics. Also,
can be used to determine the chances of winning in lotteries.
= 3 x 2 x 1 = 6 (ways).
P
3 3
C .
3 2
O per ation
4
4
16
D isplay
DEG
DEG