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Hello and welcome back to our second class of our introduction to Jupiter.

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So basically in today's class, we are going to learn how to work with Jupiter and we are going to write

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down some basic lines of code once again before starting this class.

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I highly suggest you guys to have some basic knowledge of Python because we are going to write down

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our first lines of code.

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Of course, I'm going to explain them to you.

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But once again, to be able to follow the course and not focus only on Python, you guys should have

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some basic knowledge.

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So let's jump right into it.

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The first thing that I'll ask you to do is open up your Anaconda Navigator and launch your Jupiter notebook

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simply by clicking the button right here.

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So when it's all done, it's going to be launched.

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Next thing that we want to do is pretty simple.

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We want to open up a new folder.

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So in this case, it's going to be a Python three.

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When it's all done, they will simply give a name to our folder, let's call it project in this case.

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So the first thing that we are going to talk about right here is pretty simple.

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We are going to talk about how we're how works the notebook and what exactly you guys can do with,

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well, how exactly you can work with it.

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And what is the difference between the chapter in the notebook and any other text editor?

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Well, text editor, for example, like by chance.

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So let's start basically the first thing that you guys have inside of your notebook.

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This would be your main page.

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You will have the buttons right here so they'll be able to save your changes.

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Pretty simple to simply click on the button right here.

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And usually it's going to be automatically saved.

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So as you can see, the safe mode is activated.

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So it's going to be automatically saved then in your term or any other text editor, you usually don't

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have cells inside of your notebook and you have cells.

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So there is not only one cell.

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You can have more than one cell.

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For example, if I want to add a cell, it's going to be by clicking on the little plus sign right here.

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So pretty simple.

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I can add as many cells as I want and it's pretty cool because it allows me to really organize my code.

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So say I want to write down a function right here on a store.

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Some variables right here.

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I want to write down another function right here.

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And which is pretty cool is that I can move my cells from up to them if you guys want to duplicate your

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cell.

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Well, first of all, if you want to delete, your cell is going to be there.

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So simply click on the scissors.

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If you guys want to duplicate your cells, it's going to be here so you can select a copy cell and you

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can copy your cell.

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So let's say, for example, we have a cell right here.

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We will write down something simple.

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So a simple function.

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Let's print pizza, for example.

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Here we go.

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I have my function, so I run my function.

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I have pizza right here.

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Let's say I want to copy this cell right there.

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And I past myself.

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And as you can see, it's it's television and it has been copied and pasted down there.

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All right, so pretty simple if I want to move myself, so let's say I have more than one cell.

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I have a lot of cells.

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I can take this code right here and move it from up to down.

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So right now, I have absolutely nothing.

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I just have a print function with PDA inside of it.

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That doesn't mean nothing.

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But let's say, for example, I have variables right here that I want to work with them down there.

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I can do it.

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I can just have my variables here.

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And let's say I want to put them down here.

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I have a function where I want to take a function and move it somewhere higher or anything.

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I can move my cells how I want, which is pretty cool in this case with Jupiter.

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All right.

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Next thing to run are apps to run our code.

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I mean, it's going to be just there.

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You simply click on the run button.

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If you want to stop the code that is running, it's going to be on the little interrupt button right

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here.

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So this is for the basics of well, of Python, but of Jupiter.

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Sorry.

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So it's pretty simple.

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As you can see, it's pretty simple to use.

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Next thing that we are going to talk about would be our first python lines of code.

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So how exactly can we work with it?

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So as you saw some seconds before in this with the Jupiter, you don't you don't have a terminal down

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here like you do in, for example, by terms.

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So basically, if you write down your code, it's going to be printed right under the cell right there.

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So just for the purpose, to understand how Jupiter works and for the purpose of everybody who is in

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the course and maybe don't understand Python that much, will write down a very simple line of code.

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And I will explain really the basics of Python, which we'll talk about variables, numbers and booleans.

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So let's set it up.

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The first thing that we'll do is simply create two variables that are strings.

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So in this case, let's say we will call it name one and name what?

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Name to it, name zero.

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And in this case, let's name our name Will.

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Our name variable will be pizza.

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So for those who never really programmed and are right now writing down their first lines of code,

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what I'm doing right now is I'm creating my variables, which is a name and name two, and I'm storing

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strings inside of my variable.

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So I created two variables.

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The first one is called the name and the second variable is called name two.

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I have three types of variables, which could be strings or plaintext.

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Strings are simply plaintext.

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I have numbers which can be one to infinity.

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So in this case, let's say we have quantity one and quantity two, those two countries will be numbers.

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So in this case, will have number two and number four.

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So as you can see here, I have my pizza, I have my pasta.

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Those two are strings.

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And those variables right here are numbers.

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It's possible to transform strings into numbers and numbers into strings, because when you write down

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a line of code, you can use both strings and numbers at the same place.

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So if you try to run, for example, a sentence that contains numbers and strings, it's not going to

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work.

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You guys need to transform your strings if you want to use only strings to transform all your numbers

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into strings.

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So let's write down a very simple line of code and that in this case, this line of code right here.

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So what exactly this line of code means?

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It's pretty simple.

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First of all, I want what exactly do I want?

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So when I write down, well, let's start by spring.

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So first of all, I have my print function.

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I ask, I ask, I give the order to print something.

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So what?

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I give the order to print.

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I give the order to print I want.

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So this would be the first part of our function.

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This is just plain text.

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This is a string.

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What I want exactly.

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I want quantity one.

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So quantity one in this case is the number two.

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Why I wrote a story right here.

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This is the function that we use to transform numbers into string.

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So as I said, we can't have strings and numbers inside of the same sentence.

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Then what exactly do I want?

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I want quantity one plus name.

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This means I want two pizzas.

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So we have our quantity one, which is two plus name, which is pizza, plus we have our plaintext or

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our string.

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And and in this case, we just put it inside of those little parenthesis.

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Plus I want quantity and number two in this four in this case it means four plus name two.

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In this case it means pasta.

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So if we were on our app, logically is going to give us I want two pizzas and four pastas.

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So let's try it out.

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As you can see right here, we have an airside so what exactly do we have in there?

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It's pretty simple because it says quantity one is not defined, pretty simple.

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Let's try something else.

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So usually the error comes when you guys just don't add the little space bar.

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And as you can see here, it works so pretty simple.

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The problem was simply right here.

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So there were no spaces and this is how the erosion.

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So this is a typical error with Jupiter that you guys can have.

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Sometimes just a little space button will make it work or not work.

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So really, be careful about it.

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I'm not going to give you a complete course of how to how to debug all errors, because once again,

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this is just a really basic line of code.

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Certainly.

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Yes.

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Understand how exactly works in Jupiter.

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So it's pretty simple.

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Jupiter is, as I said, a text editor and what a notebook.

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And you can use it to write down your lines of code.

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And right now, you know exactly how it works, how all what all the buttons right here means and how

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everything works.

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Don't forget to save your works are pretty simple.

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You simply save it.

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So the sweet next time that you connect to your chapter, you will be able to see your work.

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So in this case, if, for example, we decided to click on X right here, we have our project, which

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is right there, we can just run it so we can simply click on our project.

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And as you can see, we will have our project right here.

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So that's it for this class guys, into our next class.