‫Instructor: Hi.
‫Within this lecture,
‫we're going to give you your first assignment,
‫so you're gonna be building the worst calculator ever.
‫I'm calling it worst because this is so simple.
‫We can only do four basic operations in this calculator.
‫Let me give you an example.
‫So, I write 10 and 20.
‫I can sum them and I can subtract one from each other.
‫I can just try to multiply them or divide one by another.
‫So, as you can see, this is worst.
‫Of course, this is not an app
‫that you may want to upload to your app store,
‫but this will give you a good chance
‫to practice what you have been learning so far.
‫So, maybe you're thinking right now,
‫there are some elements in here that we haven't covered yet.
‫Yes, that's correct.
‫For example, we don't know how
‫to get this input from a user, right?
‫But, it's fairly easy.
‫I suggest you pause the video after the lecture
‫and try to Google this
‫and find out about how to do this input thing.
‫Let me even give you a hint.
‫This is called TextField, okay.
‫You can find this under library.
‫So, remember how we dragged (indistinct)
‫from the library in the first section?
‫That's how you do that.
‫You can just try to quickly Google
‫how to use text fields in Swift iOS
‫and you can find about all these operations.
‫And don't worry if you cannot do that on your own,
‫or don't worry if you don't wanna do that.
‫I'm going to be explaining this
‫and I'm going to be explaining a lot more
‫during these next three lectures,
‫but this will be a good chance for us
‫to practice what we have been learning so far
‫so that we're gonna go and build
‫the worst calculator ever has been made
‫in the history of world.
‫So, let's stop here and continue in the next lecture.