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Factorial (!)
This function obtains the factorials of a value that is zero or a positive
integer
.
Example: (5 + 3)! = 40320
5 3 ( x !)
40320.
Random Number (Ran#)
Function that generates a pseudo random number in the range of 0.000 to
0.999.
Example: Generate three 3-digit random numbers.
The random 3 digit decimal values are converted to 3-digit integer values
by multiplying by 1000.
Note that the values shown here are examples only
. Values actually
generated by your calculator will be different.
1000
(Ran#) 634.
92.
175.
Permutation ( n P r ) and Combination
( n C r )
These functions make it possible to perform permutation and combination
calculations.
n and r must be integers in the range of 0 ≦ r ≦ n < 1 × 10
10
.
Example 1: T
o determine how many different 4-digit values can be
produced using the numbers 1 through 7
• Numbers cannot be duplicated within the same 4-digit value (1234 is
allowed, but 1
123 is not).
7
( n P r ) 4
840.
Example 2: T
o determine how many different 4-member groups can be
organized in a group of 10 individuals
10
4 210.
28
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