Combinations - Casio fx-3650P Programming Manual

25

Combinations

A
Let there be cards with the letter "
*
C
letter " " and cards with the letter "
Then number of possible different ways to arrange all
( × × )
A B C
cards in a row, is given by:
×
C C
a + + b c b + c
a b
ON MODE MODE
？→ Ａ：？→ Ｂ：？→ Ｃ： （Ａ ＋ Ｂ ＋ Ｃ）！÷ Ａ！÷ Ｂ！÷ Ｃ！→ Ｙ：Ｙ ＜ 33 STEP ＞
INPUT A, B, C, : number of cards showing "A", "B" and "C" respectively
OUTPUT Y : the number of combinations
How many combinations are possible for 3 "
Prog 1
3 EXE
2 EXE
2 EXE
( )! (
---------------------------- - b a + + b c
= ------------------ -
( )!
a! b + c b!c!
PRGM
MODE
B
cards with the
",
+
" written on them.
)! (
+ c a + + b c
= ---------------------------- -
a!b!c!
...
× ×
a! =
1 2
=
0! 1
COMP
1 MODE
*
"s, 2 " "s and 2 "
S A
S A
S A
S A
)!
×
a
1 1
+
"s?
P1 P1 P2 P3 P4 D R
P1 P1 P2 P3 P4 D R
P1 P1 P2 P3 P4 D R
P1 P1 P2 P3 P4 D R
G
G
G
G
35