Introduction to IT and Cybersecurity

### Video Transcription

00:00

So you have seen that

00:02

in four. Next

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Ah

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ah, loop. We have

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counter as essential part off the

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loop structure

00:14

in do while we don't have to have it.

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So

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we have two variations which is due while and then loop at the end. Or do something loop while

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they're similar in, but essentially different. So we'll have

00:31

both of them

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explained in the examples. So let's go first to this one, which is just the stuff straight do,

00:43

uh, while and then loop.

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And in this particular case,

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we want to calculate,

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um,

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the largest sum off

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integers

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that will be smaller than the given number.

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So we type number in this cell

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and then we want to calculate so one plus two plus three plus four plus something

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and that's total sum should be smaller than this number.

01:15

And let's just do the

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example first. So let's run. I call this maxim

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and I get 1378. I didn't display what is the last number, but let's go to the structure of this macro

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and explain how it's

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done.

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So it's closed this one first.

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So we have this sub and then we dimension dies an integer

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and em Some also is an integer so we won't go

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do high

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And at the beginning we set em some and I to zero

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And then we say Do while

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m Some

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is smaller than active cell value. So this is how we recall the active cell because this

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ah macro has designed that we select the cell

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and then it will put in the cell next to it.

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The result.

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So then we

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menu Aly create the counter. So we say I equals eye plus one

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and then we say m some equals m sum plus one and then we do loop

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and it will go back

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and check if M sum is still smaller than active cell.

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And if it is,

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it will

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add one toe I and do the sub sub summation again and then

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rotate until we

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make em some bigger than active cell value.

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Then, at that moment, we have already added one number too many

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to the total sum. But we have exited the loop and then we're just putting in efs active cell.

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And then we were using the perimeter offset. So with the active cell officer 0.1 means zeroes and one column

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higher location than the active cell

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and then value.

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And then we just

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make it Toby M. Some miners, I so

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one I added too many. We have subtracted and we have ended this up. So you see here,

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this is

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moving around in the loop until we reached this condition.

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In theory, we didn't have to have any kind of,

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ah counter here.

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We could have had ah, for example of

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displayed box in which you were would be entering something yes or no? Yes or no. And regarding off the result, it would

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loup loup, loup, loup, loup until

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and

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so this is how this one works.

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Let's close this for a moment

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and let's go here. So

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the idea of this one is to select the range of cells

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and then put to the cells next to them square root of this number here.

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So

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it's this function and let's edit it first.

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So we're

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saying

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that counter is an integer

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and we'd say, Do

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e I was I plus one and then we say range off e,

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which is

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call him e.

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And then

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I as in

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counter which represent the row

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and then the value of it is equal off square root

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off the cell, which is in column D ended in the same row

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and what we're doing, then we're looping

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while range

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value off the cell in range Incom D

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is different from nothing.

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When we reach the first cell

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that has no values in it,

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we say, Okay, we have calculated them all.

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And then we're just the last cell. We're putting nothing in it because we have already calculated it could be square root off nothing which is zero. And then it would be a zero in that cell. So let's just

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we don't have to select the range, which is go here

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and execute square with Dole

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and it will calculate square roots of these numbers

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and just these numbers. So when this

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macro reaches empty cell, it will stop.

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And, uh,

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let's immediately do the do until

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with the absolutely same examples. So I have

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ah, first maxim, too.

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It gives the same result like before,

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and we who, if we would edit this function,

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we see that we're doing pretty much the same thing.

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Accept, because it's now until

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the condition is different.

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There we had that we were doing this

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while I am some

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active cell value is smaller easel larger

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em. Some is smaller than active cell value and here were doing until we cross the threshold. Effective cell value

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pretty much the same thing.

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So we're just going in the loop,

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adding And then again when we reach this condition, we have already added one number too many. So at the end,

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the value off active cell plus one

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location in the in the same row will be the calculated some minus the last counter.

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And that's the one.

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And the second

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is the same here. So we're going to calculate

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square a toll

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two. We get absolutely the same results.

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And

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if we added this macro,

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we're doing the same thing. Except we're doing global till.

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So we're until the range of the is equal. Nothing. So there we were looking if it's different than nothing. And here we are now looking for empty cell, and when we find them to sell, we say, Okay, stop.

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And then we just put in the last cell because we have already done the calculation and did the square root.

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We just put

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the empty in. The

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result.

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Calm in the cold e

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and we're finished. So these are the loops in excel,

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and you have seen how to efficiently use them

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in the various calculation. So to do this

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in Excel without Mac Rose,

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to do it on a range that is absolutely variable would be

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quite a difficult thing. It could be possibly done with some array functions and some functions, but it's a

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it would be a problem, if not impossible. So this is very easy way you see how short this macro is. It's very easy way to do something like that.

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### Intermediate Excel

Being an intermediate level user of Excel can help save a user hours of work time and take full advantage of the Excel application. Taking an intermediate Excel training will help students advance their skills and pass an intermediate Excel exam.

### Instructed By

Milan Cetic

Instructor