Functions

A function is basically a sequence of statements that collectively perform some task or a group of tasks.

• We call a function by its name.

We have already encountered certain functions like,

type(23)

The name of the function is type. It returns int.

• The expression in parentheses is called the argument of the function.
• The argument is a value or variable that we are passing into the function as input to the function.

Therefore, a function takes an argument and returns a result.