I permutation and combination – Casio FX-9750GII User Manual
Page 56

2-18
Example
Operation
Calculate
r
and
Ƨ
° when
x
= 14 and
y
= 20.7
20.7U)
Calculate
x
and
y
when
r
= 25 and
Ƨ
= 56°
(Rec() 2556U
* fx-7400G
II
, fx-9750G
II
:
AAAAA ** fx-7400G
II
:
(ANGL)
I Permutation and Combination
S Permutation
S Combination
• Be sure to specify Comp for Mode in the Setup screen.
Example 1 To calculate the possible number of different arrangements using 4
items selected from among 10 items
Formula
Operation
10
P
4
= 5040
10
*(E)(PROB)*(
n
P
r
) 4
U
* fx-7400G
II
:
(PROB)
Example 2 To calculate the possible number of different combinations of 4 items
that can be selected from among 10 items
Formula
Operation
10
C
4
= 210
10
*(E)(PROB)*(
n
C
r
) 4
U
* fx-7400G
II
:
(PROB)
I Greatest Common Divisor (GCD), Least Common Multiple (LCM)
Example
Operation
To determine the greatest common
divisor of 28 and 35
(GCD (28, 35) = 7)
*(E)(NUM)*(E)(GCD) 28
35
U
To determine the least common multiple
of 9 and 15
(LCM (9, 15) = 45)
*(E)(NUM)*(E)(LCM) 915
U
* fx-7400G
II
:
(NUM)
1
24.989
24.98979792 (r)
2
55.928
55.92839019 ( )
1
24.989
24.98979792 (r)
2
55.928
55.92839019 ( )
1
13.979
13.97982259 (x)
2
20.725
20.72593931 (y)
1
13.979
13.97982259 (x)
2
20.725
20.72593931 (y)
n!
n!
nPr =
nCr =
(n – r)!
r! (n – r)!
n!
n!
nPr =
nCr =
(n – r)!
r! (n – r)!