WEBVTT

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Hello.

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Welcome to the next section.

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See these UN definitions.

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So in this video we'll talk about variables.

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So we have local variables and variable utilities in local variables.

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When I click on local variables it creates a local variable under a given component.

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What is a local variable.

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You see the I can see is equal to something.

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So for example if I write B equal to 10.

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So this is a local variable which is created inside of component 1 which is a true complaint.

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Now very you type B in for example if you click on somewhere maybe temperature instead of 50 you can

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write B so it will take the value then this is the use of local variable.

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It could be a function of various other parameters also.

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Now let's talk about variable utilities.

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Expression operator matrix matrix inverse matrix degradation and many other things.

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So let me show you.

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If I click on matrix you see we get a matrix T1 which is having a three cost three nature.

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You can always change the matrix dimension and the matrix format know that.

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Suppose you are solving a kind of problem where you need to introduce a matrix.

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Um so how will you do that.

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So for those reasons you have to introduce the term matrix so wherever you need this matrix you can

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always type 1.

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That means that T1 will be multiplied with your given expression and you can always change these variables

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with um local variables are global variables for example Step 1 I can write B which I already define

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as B equal to 10.

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So this is the overall idea of local variable and variable utilities.

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I hope this is clear for you in my next lecture I will talk about functions.

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See you in my next video.

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Take care.

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So just a quick note after every lecture you will get a quiz where you can check your concept whatever

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you have learned from each lecture so I will give you a sample how the quiz will actually look after

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every video you'll have a quiz which will have something like this.

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You have a question and you will have like four different options and you can check the answer and then

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you can move to the next question so do attend the quiz because it will help you to clear up your understanding

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on each lecture and overall the course.

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So okay good bye see you in my next video.