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Well it's great.

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File edition dot s h when we can break these functions on the first line start shoving

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and we are going to do with all due the addition of two numbers.

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So start with asking user for entering first number

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now start the aspheric into variable first then ask for a second number.

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And start the answer into variable.

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Second.

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Now we can call the function which will do addition of two enters numbers.

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So my function will be called addition and it takes two arguments value or variable first and the value

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of variable.

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Second this function does not exist yet.

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We need to create it but do remember under Tillery lecture we need to write declaration of a function

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before the actual calling of that function.

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So function addition and inside Gardley brackets I will write code Firstly let's assign into local variable

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first first argument out of one and into local variable second assign second argument to why we are

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creating local variables here.

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We don't need that now.

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But sometimes you want to change the value of arguments.

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You don't want to change global variables and also we are using here are local variables as it is a

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good example as you will see later.

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Now let's do the actual audition using common blood.

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So result is equal first class second

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and we'll write the result to the screen.

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Now just as an experiment increment the local variable first

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and also increment a local variable.

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Second now descript is dominant but we can ensure uphold our values of variables first and second so

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we call

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printing variables

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and on the next line and other eco and print output of variable first and on the next line and other

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Ikuko month and we'll print the screen value of variable.

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Second

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you can save this group Nahoum ground it could better missions

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and you can get

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for number 5 second number seven.

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And the result is 12th grade.

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It isn't working.

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But he's not dead the variable first has the value 5 and the value of variable second is seven dead

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means that the values of that variables are very changed even if we do incrementation in the function

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because the increment and only local variables.

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If I tried another numbers for example I can try number 10 and 20.

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It is working also.

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Bhaduri about some other numbers as what say mine was then.

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And to it is working.

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The result is minus eight grade but in function we are using a variable called result.

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Is that a global variable.

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Yes.

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We didn't use keyword local the value of variable result is still the result of addition of two numbers

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even though the function was finished.

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So we in the script can still work with the value of variable result

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even round described now.

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And there are three and five.

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We still see output of result even we use it at the end of the script.