Functions

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Functions — Functions

Functions are reusable pieces of programs that take an input and produce an output.

A function definition is a compound statement consisting of a header and a body.

The header includes the keyword def, a sequence of parameters enclosed by parentheses, followed by a colon :.

The body consists of a sequence of statements, all indented by 4 spaces.

Functions may return a value using the keyword return or have a side effect (e.g., print).

To evaluate a function call, replace the function's parameters in the body of the function by their associated values in the call and execute the body of the function.

Lecture examples - Functions

More examples - Stucture of Functions, Uses of Functions, Scope of Variables, Examples of Functions

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