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Hey everyone.

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So in this video we are going to learn and indexing and slicing in to the edit.

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So for that that just create that DNA by using a..

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At Ange

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and at least don't let me have all 50 elements this time.

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And then we use data in shape to define the order that is five.

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Gross.

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Or just use 25 elements.

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There's also enough for demonstration.

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So here we have this one and index.

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Here we have now to excessively element in this one.

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We have two different methods that is first one is something like the list that is positive Austell

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event 2.

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And then he had three that first one is denoting the row that's I.

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And this one is G.

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So if you want to access this do it then how you can access this one is first in DRO 0 1 and 2.

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So the row will be 2 and the column will be 0 1 and 2.

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There is also a shift center you get detoured if you want to access 22 then it will be fourth row.

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And second element.

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So the second column.

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So that's what we can use the indexing to the array.

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You can also use something like X and dispenses this one is in Python 3 Lightfoot for us to do we have

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the added that may not be happened here.

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But so this one is this just shift into so there is no different is that the package there.

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I got a little confused in that.

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So sorry for that.

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Here we have this one.

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You can do the same.

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The D like food comma to shift into you go to 22 that's about the indexing and now what about the slicing.

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What if you need to slice like here These 2 3 4 and 7 8 9.

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So how you can slice it.

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So in this just like that one they used something like one and then this thing up to date that we used

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the same thing but for 2D and for that we use that word twice.

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Just like that.

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So if we need to have this spot.

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So first we define that which tools we need.

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So we need the draw from that is zero for this one and this one is 1.

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So we need 0 to 2 because the upper limit is not included then V you lead the columns that is this column

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this column this.

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So this is second third and fourth.

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So we use after 2 all the columns.

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So here he can shift into here we get 2 3 4 and 7 8 9.

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You can do same thing with any element here.

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Like if I need to have this one this one and this the square matrix of six to 18 we will do something

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like.

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Let me clear this one here.

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This will also no to have this one the row I need is that is first second and third.

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So I will go for first two four equals upper limit is excluded.

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Then I will use the column that is again same first two fourth shift until you get these elements.

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That is six seven eight eleven twelve thirteen and 16 17 18.

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Next how you can slice any list in number by my using this thing.

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One more thing that I want to teach you here is something like that is known as conditional selection.

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That is if we have let we have another one here.

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That is something like and B don't arrange and from 1 to 1.

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Here we have VI this one if you want to have something like all the values greater than just like here

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we have well so greater than 20 then you do this thing you will get a list of billions in which all

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the values lower than that one will be false and higher than that one will be true.

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And if you need the values there because this one true false issuing the indexes we just use again a

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value here and this one in these brackets then you will get all the values.

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So this thing is known as the conditional selection.

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You can have any kind of this one here.

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You can also have like less than divisible just by using the remainder.

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Like if I show you something like the values that have like Y then I use the reminder operator like

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the US in this data and is equal to zero.

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I think that may invoke and this one needs an equal to be done maybe.

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So I don't know what is required for the reminder and if we work for less then like four we have one

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two three four reminder we need something like reminder of that we do is not equal to zero.

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Maybe I have divided that one with zero that's why it's not working.

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So here we have this one there I have done zero because zero division is not possible.

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So this is about this one here.

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Condition selection this one is not used much in any case I have not even used that thing anywhere till

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now just the operators and operation just have to solve any problem but still there is something you

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need to know.

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That's why I had to do that.

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So thanks for watching and we will continue in the next video.