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The [math] prb menu, Rand, The 1 – Texas Instruments TI-73 EXPLORER User Manual

Page 55: Prb menu, Rand rand 1

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Chapter 2: Math Operations

49

7302ENG.DOC CH2 Math Operations, English Julie Hewlett Revised: 07/29/98 11:58 AM Printed: 05/19/99 8:58

AM Page 49 of 32

The 1

PRB Menu

The 1

PRB

(probability) menu lets you select functions

that are often used to calculate probabilities.

1 " "

1:rand

Generates a random number between 0 and 1.

2:randInt(

Generates a random integer between two values.

3:nPr

Calculates the number of permutations for a group

of items.

4:nCr

Calculates the number of combinations for a group

of items.

5:!

Calculates the factorial of a positive integer.

6:coin(

Simulates one or more coin tosses.

7:dice(

Simulates one or more dice rolls.

rand

rand 1

"

"

1

1

Generates a random real number between 0 and 1

(0

rand

takes no arguments.

rand

If you want to control a sequence of random numbers, first

store an integer “seed value” to

rand

. The calculator generates

a specific sequence of random numbers from each seed value.

To get a different sequence, use a different seed value. The

default seed value is 0.

seed X

rand