Math Prb (Probability) Operations - Texas Instruments TI-80 Manual Book

MATH PRB (Probability) Operations

To display the MATH PRB menu, press I 6. When you select a menu item,
the name is copied to the cursor location. Functions that are valid for lists return
a list calculated on an element-by-element basis.
MATH PRB
Menu
RAND
2-12 Math, Angle, and Test Operations
MATH NUM PRB
1: RAND
2: nPr
3: nCr
4: !
5: RANDINT(
RAND (random number,
returns a random number greater than 0 and less than 1 (as in
the first example below). A random number is generated from
a seed value. To control a random number sequence, first
store an integer seed value in
below, 1 is stored to
value for generating random numbers.
Note: When you reset the TI-80,
seed value, which is 0.
Random number generator.
Number of permutations.
Number of combinations.
Factorial.
Random integer generator.
MATH PRB
RAND . In the second example
RAND so that the TI-80 uses 1 as the seed
RAND
, item 1) generates and
is set to the factory