Parameter and argument:
Some of the built-in functions we have seen require arguments. For example, when you call math.s in you pass a number as an argument. Some function takes more than one argument: math.pow takes two, the base and exponent.
Inside the function, the argument is assigned to a variable called parameters. Here is an example of a user-defined function that takes an argument:
def print_twice(bruce): print bruce prinr bruce for example: >>>print('spam') spam spam