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Hello, guys, and welcome back to the class of our course about the complete introduction to that science.

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So in today's class, we are still going to talk about Skype.

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And this is our last class about this amazing Python library.

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So basically what we are going to learn today, what what we are going to talk about today will be linear

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algebra and all the functions that we can use with linear algebra inside of Skype.

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So basically, as I said there, there is plenty of sub packages that exists in Skype.

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And one of those give us access to the majority of linear algebra functions that exist.

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So basically, we are going to learn two of those functions, which are basically the sole function,

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which will solve an operation of linear algebra with the two square arrays.

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So basically we're going to create square arrays with the use of No.8 and simply solve them together.

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And we are also going to generate the reverse of an area.

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So basically the function.

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So there are plenty of functions that exists with the with the basically not SCoPI, but linear algebra.

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So the sub, the sub package that is linear algebra inside of SCoPI.

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So some of those functions will be, for example, the basic functions, which will be the sole function,

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the normal function, the function, the B to function.

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We have the E age involved, the problems.

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We have matrix functions.

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We have matrix equation solvers, we have special mattresses and plenty of others.

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So basically the linear algebra part of Kibuye is really huge and is really well built.

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So basically, if you guys are advanced in linear algebra, you can do pretty much anything you want

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with Skype if you want to build up an application that uses linear algebra with it.

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So it could be for data science.

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It could be for any other personal project.

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All right.

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So as I said, the functions that we are going to use today would be the function that will compute

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the inverse of a matrix and the cell function that will simply solve the linear equations set off of

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our two matrixes for the unknown X four square, eight matrix.

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All right.

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So let's start basically the first function that we are going to learn will be the sole function.

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And before we even start what we need to do, we need to import numpties as well as Kibuye, because

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we are going to use both of them.

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So, as always, we are going to import SkyBitz and then we are going to import Numberi because we will

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need to create an.

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Here we go.

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When it's all done, what want to do, as I said, we are going to work with the linear algebra, so

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we need to import the sub package lineout out, which would be the linear algebra sub package.

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So simply write down from SCoPI import Lenn out.

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So basically this would be the linear algebra sub package right now.

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Want to do we need to create our area.

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So basically we have imported everything that we need.

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Now it's time for us to start our operation.

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So let's create our area.

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So we'll do right now we'll create two areas.

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So we'll call it Arijit one.

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And for everyone will have to square area.

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So basically, it's going to be two lines of two numbers.

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So pretty simple.

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So how to write down in that area?

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We open up the parenthesis and here we can write down one entry.

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So basically even numbers and in the same area will write down our numbers.

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So it's going to be two and four.

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All right.

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So for the second one will do the exact same thing.

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So we'll just copy everything from here to there.

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We'll call it area number two and what we'll do, we'll just change the numbers that are inside, let's

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put five and nine in here.

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Let's put to

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put six and eight.

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All right.

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So we have our numbers.

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Amazing.

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So right now, we have everything that we need.

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So what we can do to be sure that everything works fine so we can print a everyone.

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You as well as two.

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All right, so everything works fine, everything is perfect, so as you can see, everything is great,

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everything works.

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So now it's time for us to make the operation.

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So basically, as I said, the first thing that will do will solve the operation that will work with

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everyone and every two.

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And basically the goal here would be to solve the equation set so multiplied by X equals be for the

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unknown X for four square a matrix.

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So basically in this case, we'll have A and B.

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All right.

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So let's do it.

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So pretty simple.

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What we'll do right now will create another variable.

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In this case, we will call this variable function one and let's do it.

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So basically we will write our function.

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So it's going to be easy because we are referring to Kibuye to escape a function.

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So we'll write down Espie that Lynn ALG, since it's a sub package of SCoPI.

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So basically linear algebra is a page of SkyBitz.

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Next thing we'll write down the function that we are going to use in this case is going to be the sole

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function.

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And what we want to solve.

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Exactly.

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Want to solve every one as well as every two.

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So everyone mixed with every number two.

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So we want to do right now, we want to print function one.

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So just make a little mistake.

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We'll write it down again.

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So basically, it's going to be speech that went out that so and in this case is going to be every one

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and every two.

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Great.

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So we have everything we need.

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So next thing that we need to do is pretty simple.

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We need to verify that there is no mistake that everything works fine.

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So basically, in our case right now, everything looks pretty good.

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So we have our every one, every two

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to go.

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So we have a little problem right here, just corrected here.

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And we can print absolutely everything that we can see.

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This would be our insert right here.

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So it has solved the equation that.

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Give us this answer right there.

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All right.

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So next thing that we want to do right now is pretty simple.

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What we want to do is calculate the reverse of our eye right here.

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So pretty simple.

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What we'll do, we'll simply calculate the reverse of this area.

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So in this case, what we can do, we can simply write down function.

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So function, let's say in this case, we didn't lose function.

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One, we're automatically printed.

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So we can do we can just write down function one and write it down.

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So basically function one will be equal to our operation.

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So it's going to be espie, that lineout, because we are making a reference to linear algebra functions

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and the function that we are going to use will be the function or the reverse function.

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So in this case, we want the reverse function of every one.

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And what we want to do right now, we want to print it.

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So basically we'll just delete the print right here.

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And what we want to do right now, we want to print our function one.

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So we'll just have different pieces and write down function one.

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Right.

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When everything is done, we simply run our operation.

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And as you can see, we have the reverse function of our error rate number one right here or our function

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one.

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So basically, this is the reverse of every number one calculated.

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It will it has computed the inverse of this matrix.

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Right.

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So you guys, I hope until now, you guys, everything that you can do with SkyBitz, once again, you

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will not be a professional of SCoPI after just this part of the course.

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But I hope you guys have a certain idea of what Kibuye is.

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So up until now, you guys like the course.

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Hopefully you will continue it because there is there are plenty of other interesting things to learn.

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So that's a first class guys and see you all in the next part of the course.