Computer Science · May / June 2023 · Paper 21 · Question 4
0478
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The question as text
Explain the purpose of the library routines DIV and ROUND DIV ROUND [4]
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One mark per mark point, max four
DIV, max two
To perform integer division
Meaning only the whole number part of the answer is retained
Example of DIV For example DIV(9,4) = 2
ROUND, max two
To return a value rounded to a specified number of digits / decimal places
The result will either be rounded to the next highest or the next lowest value
… depending on whether the value of the preceding digit is >=5 or <5
Example of ROUND for example, ROUND(4.56, 1) = 4.6
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