Hello.
Welcome to the next section.
See these UN definitions.
So in this video we'll talk about variables.
So we have local variables and variable utilities in local variables.
When I click on local variables it creates a local variable under a given component.
What is a local variable.
You see the I can see is equal to something.
So for example if I write B equal to 10.
So this is a local variable which is created inside of component 1 which is a true complaint.
Now very you type B in for example if you click on somewhere maybe temperature instead of 50 you can
write B so it will take the value then this is the use of local variable.
It could be a function of various other parameters also.
Now let's talk about variable utilities.
Expression operator matrix matrix inverse matrix degradation and many other things.
So let me show you.
If I click on matrix you see we get a matrix T1 which is having a three cost three nature.
You can always change the matrix dimension and the matrix format know that.
Suppose you are solving a kind of problem where you need to introduce a matrix.
Um so how will you do that.
So for those reasons you have to introduce the term matrix so wherever you need this matrix you can
always type 1.
That means that T1 will be multiplied with your given expression and you can always change these variables
with um local variables are global variables for example Step 1 I can write B which I already define
as B equal to 10.
So this is the overall idea of local variable and variable utilities.
I hope this is clear for you in my next lecture I will talk about functions.
See you in my next video.
Take care.
So just a quick note after every lecture you will get a quiz where you can check your concept whatever
you have learned from each lecture so I will give you a sample how the quiz will actually look after
every video you'll have a quiz which will have something like this.
You have a question and you will have like four different options and you can check the answer and then
you can move to the next question so do attend the quiz because it will help you to clear up your understanding
on each lecture and overall the course.
So okay good bye see you in my next video.