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• Permutation : nPr =
• Combination : nCr =
• Factorial
: x! = x(x-1)(x-2).....(2)(1)
n!
(n-r)!
n!
r!(n-r)!
Random Number Generation
RAND:
: To generate a random number between 0 and 1.
* Using seed value by storing an integer to rand
( ) to control a sequence of random
numbers.
RANDI:
: To generate a random integer between two specified
integers. Results differ each time with the same
possibility occurrence within a boundary. The entry
is divided with " , ".
Example:
* The value is only a sample, results will differ each time.
10
P
3
720.
5
C
2
10.
5!
120.
Examples
Display (Lower)
Operation
Permutation, Combination, Factorials and Random
Number Generation
(nPr)
(nCr)
(!)
RAND 0.298023224*
RAND
I
(1,100
15.*
Operation
Display (Lower)
Display (Upper)
2nd