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We can calculate combinations, permutations, and factorials with functions COMB, PERM, and ! from the MTH/PROBABILITY..
•COMB(n,r): Calculates the number of combinations of n items taken r at a time
•PERM(n,r): Calculates the number of permutations of n items taken r at a time
•n!: Factorial of a positive integer. For a
Example of applications of these functions are shown next:
Random numbers
The calculator provides a random number generator that returns a uniformly distributed random real number between 0 and 1. To generate a random number, use function RAND from the MTH/PROBABILITY
Additional details on random numbers in the calculator are provided in Chapter 17 of the user’s guide. Specifically, the use of function RDZ, to re- start lists of random numbers is presented in detail in Chapter 17 of the user’s guide.
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