A function in programming, or a subroutine, is a piece of program code that can be accessed from another, A function is a specially grouped set of commands that are executed sequentially but considered as a whole., A function is declared before it is called., A colon is placed at the end of the function declaration line., A function description begins with a command def, followed by the name of the function, and a list of arguments in parentheses., The arguments get their values from the main program.

USER-DEFINED FUNCTIONS

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