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VOCAB

1. subroutines：blocks of code
2. Define：define a subroutines means writing the code
3. call：calling a subroutines means writing the code
4. procedure:is a subroutine that carries out actions
5. Function:is a subroutine that returns (make) a new value

KNOWLEGE POINTS

Example:

• Subroutine:a.Each subroutine is given a name . The code in the subroutine is typically stored outside of main program.

Example:

• Define and Call:a.A subroutine is defined in one part of the program . It is called in a different part of the programme .

Example:

• Why use subroutine? a.programs are shorter , quicker to write and have less repetition.