The Ultimate Guide to Python Programming With Python 3.10 - The RETURN Keyword

The video tutorial explains how to create a function in programming that returns a value. It introduces the concept of using the return keyword to output a result from a function. The tutorial walks through defining a function called 'root' that calculates the square root of a given number using the power function. It demonstrates testing the function with an example and highlights that the return keyword can be used to return expressions directly, without needing to store them in a variable first.

What is the primary purpose of the 'root' function introduced in the video?

• To calculate the square of a number

• To find the square root of a number

• To add two numbers

• To multiply two numbers

Which keyword is used to return a value from a function?

• break

• continue

• return

• yield

How is the square root of a number calculated in the 'root' function?

• By raising the number to the power of 0.5

• By subtracting 1 from the number

• By dividing the number by 2

• By multiplying the number by itself

What is the output of the 'root' function when the input is 25?

• 25

• 0

• 10

• 5

Can the return keyword be used to return expressions directly without storing them in a variable?

• Only in certain programming languages

• Yes, it can return expressions directly

• No, it must store the result in a variable first

• Only if the expression is a constant