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Computer Science IGCSEPDF 117
142 pagesrevision 46930
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8.1.9 ii) Library Routines
Library Routine
Q. Write a program to output a single random digit from 1 to 10 inclusive.
Explanation
Example
Returns the remainder of the
division.
DIV(21, 4)
gives 1
DIV(21, 4)
gives 5
● Performs integer division.
● Only the whole number
part of the answer is
retained. (quotient)
● Rounds the number to the
ROUND(3.2154, 3)
gives 3.215
specified decimal places
The result is rounded to the
next highest or the next
lowest value
●
Returns a number between 0 and
1 inclusive.
RANDOM()
Q. Write a pseudocode statement to generate a random number between 1 and 6 and
store it in DiceRoll.
MOD
DIV
ROUND
RANDOM
DiceRoll ← ROUND(RANDOM() * 6, 0) + 1