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Instructor: In this exercise,

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we're going to practice some list comprehension.

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You're going to write

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some list comprehension code of your own,

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and you're going to create a new list

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from the list of numbers,

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where each of the numbers are squared.

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So where it's originally 2,

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then in the new list, it should become 4,

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where it's originally 8, it should become 64,

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and so on, and so forth.

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If you take a look in the description box,

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you can see what the output should look like.

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But of course, we want you to actually write the code

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that can generate this using list comprehension.

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It only takes one line of code to do this.

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And you should not need a for loop,

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you should not need to write any conditionals.

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It should be done using what you've learned

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about list comprehension.

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And if at any point you get stuck,

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take a look in the hints in the description box,

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take a look back at the lesson

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where you learnt about list comprehension,

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and try some things out, print it out, see if it works.

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Give it a go now.

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I know the solution looks simple.

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It is just one line of code, but sometimes one line of code,

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the more succinct it is, the harder it is to get there.

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So let's go through this together.

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We have our squared numbers,

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which is a list of the numbers from line 1

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where each value is multiplied by itself.

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Now, we square a number by multiplying num by num.

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Now, what exactly is num?

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Well, num is going to be each number inside our list,

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which is called numbers.

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The full syntax is num multiplied by num

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for num in numbers.

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If none of this makes sense,

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I strongly urge you to take a look back at the lesson

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on list comprehension because this is confusing stuff,

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and if you've simply printed out the numbers

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where you've manually squared each of them

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or you used a full blown for loop

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where you have an if statement,

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then that is not the goal today.

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The goal is to practice list comprehension.

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So revise it and go back to your code

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and modify if necessary.

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If you get everything right, then congratulations,

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and you're ready to move on to the next lesson.