Cambridge O Level Computer Science · Syllabus 2210 · Programming
Library Routine
What is Library Routine?
A ready-made routine provided with the language that a program can call without defining it, limited in this syllabus to MOD, DIV, ROUND and RANDOM.
This definition is part of the Programming chapter in Cambridge O Level Computer Science.
Library Routine in context
The syllabus limits the operators you can be asked about to three closed lists. Arithmetic: +, −, /, *, ^ (raised to the power of), MOD and DIV. Relational: =, <, <=, >, >=, <>, and the result of a relational operation is always of data type BOOLEAN. Logical: AND, OR, NOT only, and their operands and their results are always BOOLEAN. The library routines are MOD, DIV, ROUND and RANDOM.
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