Combinations - HP 12c Platinum Reference Manual

n: Unused
FV: Unused
Program Instructions:
1. Key in the program.
2. Key in m and press \ ( ³ ).
3. Key in n and press t to calculate
4. For a new case go to step 2.
Example: How many ways can 10 people be seated on a bench if only 4 seats are
available?
12c platinum / 12C
RPN Keystrokes
10\
4t

Combinations

A combination is a selection of one or more of a set of distinct objects without regard to
order. The number of possible combinations, each containing n objects, that can be
formed from a collection of m distinct objects is given by:
Where m, n are integers and 69 ≥ m ≥ n ≥ 0.
Use the following HP 12C Platinum to calculate the number of possible combinations.
REGISTERS
i: Unused PV: Unused
R : n R
0
P
m
12c platinum
ALG Keystrokes
10³
4t
=
C
m n
-R : Unused
1 .8
.
n
Display
P
5,040.00
10
m !
( )
−
m n ! n !
Statistics 117
PMT: Unused
Comments
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4