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Exercise 4

Consider this code:

def multiply_numbers(num1, num2, num3):
    result = num1 * num2 * num3
    return result

product = multiply_numbers(2, 3, 4)

Identify the following items in that code:

Item
function name
function arguments
function definition
function body
function parameters
function invocation
function return value
all identifiers

Solution

Item	Answer
function name	`multiply_numbers` on lines 1 and 5
function arguments	`2`, `3`, and `4` between the parentheses on line 5
function definition	everything on lines 1-3
function body	everything on lines 2 and 3
function parameters	`num1`, `num2`, and `num3` on line 1
function invocation	`multiply_numbers(2, 3, 4)` on line 5
function return value	`24`
all identifiers	`multiply_numbers`, `num1`, `num2`, `num3`, `result`, and `product`

Video Walkthrough

Errata: At about 1:56 the instructor says that the function name is on lines 3 and 5. In fact, the correct line numbers in the video are lines 3 and 7.

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