48 Section 4: Statistics Functions
How many different four-card hands can be dealt from a deck of 52 cards?
Keystrokes Display
52 v 4
4
Fifty-two (y) cards
dealt four (x) at a time.
| c
270,725.0000
Number of different
hands possible.
The maximum size of x or y is 9,999,999,999.
Random Number Generator
Pressing ´ # (random number) will generate a random number
(part of a uniformly distributed pseudo-random number sequence) in the
range 0 ≤ r < 1.
*
At initial power-up (including reset of Continuous Memory), the HP 15c
random number generator will use zero as a “seed” to initiate a random
number sequence. Any time you generate a random number, that number
becomes the seed for the next random number. You can initiate a
different random number sequence by storing a new seed for the random
number generator. (Repetition of a random number seed will produce
repetition of the random number sequence.)
O ´ # will store the X-register number (0 ≤ r < 1) as a new
seed for the random number generator. (A value for r outside this range
will be converted to fit within the range.)
l ´ # will recall to the display the current random number
seed.
*
Passes the spectral test (D. Knuth, The Art of Computer Programming, Vol. 2:
Seminumerical Algorithms, Third Edition, 1998).
To Next Page
Loading...
