Sharp EL-9650 - Page 68

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CHAPTER 3
No. Example Key operations Answer
1 Random number: Random
number × 100
2 Permutation:
8
P
3
*
2
Total number of possible
permutations for selecting
3 items from 8 items
3 Combination:
9
C
2
*
3
Total number of possible
combinations for selecting
2 items from 9 items
4 Factorial:7!
≥ C 1 j 100 ® 22.56631033 *
1
8 ≥ C 2 3 ® 336
9 ≥ C 3 2 ® 36
7 ≥ C 4 ® 5040
*1
The result produced by the random number function may not be the same as the answer given
in the example due to the nature of this function. (Range of random number generation: 0 to
0.999999999)
*2
Permutation is expressed by “ ”.
*3
Combination is expressed by “ ”.
Common function menu (C) [C PROB]:
• Check the menu. Press ≥ C to display the
screen shown on the right.
• There are a total of four options in the PROB menu.
(See the list in APPENDIX “6. Explanation of EL-9650
menus” for an explanation of functions on page 288.)
The menu includes random number generation (random), permutation (nPr),
combination (nCr) and factorial (!).