Casio ClassPad 330, User Manual

Page: 138 / 954

20090601
Problem
U s e thi s keyboard:
Operation
mth abc cat 2D
Divide 21 by 6 and 7, and
determine the remainder
of both operations.
(iMod(21, {6, 7}) Func [iMod] 21 W 6 7
Y U
I Permutation ( n P r ) and Combination ( n C r )
S Total Number of Permutation s
S Total Number of Combination s
Problem
U s e thi s keyboard:
Operation
mth abc cat 2D
How many different
permutations are possible
when you have 10 different
objects and arrange them
four at a time?
10
P
4
= 5040
CALC Func Z 10 4 U
How many different
combinations are possible
when you have 10 different
objects and remove four at
a time?
10
C
4
= 210
CALC Func Y 10 4 U
n
!
n P r = –––––
( n – r )!
n
!
n P r = –––––
( n – r )!
n !
n C r = –––––––
r
! (
n
–
r
)!
n !
n C r = –––––––
r
! (
n
–
r
)!
2-4-11
Function Calculations