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Hello and welcome to the and programming language course in the previous session, we talked about functions

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as values in this session, we want to talk about the authors functions concept.

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Returning multiple values.

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In go language, you are allowed to return multiple values from a function using the return, a statement

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or in other rules in function.

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A single written a statement can return multiple values.

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The type of the return values is similar to the type of the parameter defined in the parameter release.

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Now you can see the scene techs.

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Function, nay, it is the name of the function parameter release, it contains the name and the type

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of the function parameters.

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Return type list, it's optional, and it contains the types of the values that function returns, if

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you are using visa and type in your function, then it necessary to use a written statement in your

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function.

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Return values.

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The function can have one or more returned values assume there is a function, some underscored a veggie

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that returns to values, song and average.

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Note that when retaining multiple values, the retained value time has to be enclosed within parenthesis.

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You can see some pattern for this case.

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As a convention, a role is returned as the last argument in a function.

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You can see the sample for this case and collecting multiple returned values in the column function

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like following Sampat.

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Now, go to this good program to illustrate how to use return multiple values.

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In this case, we want to calculate rectangular area and perimeter by function, first, create function

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for this purpose by the following code.

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Right angle, for the example, w Typekit is it and age type of it, is it w an age as parameters by

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aid type and set to type as return types and time on it?

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First calculate rectangle perimeter for the example three metre column equals tool multiplication W

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Class H and calculate rectangle area and in the next line area, calling equals W multiplication hich

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now return area and perimeter or variable return area and perimeter.

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Now create a main function for invoked the rectangle function, so go to the main function and first

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creating local variable definition, then initialization than a comma b type of Disney's teens.

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Now calling rectangle function and set return values in two very but a and B as perimeter and area of

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rectangle a comma B equals invoke Reagan definition rectangle and set the variables.

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For example, 20 and 30 now Display Valley, then go to the next line if P area and a go to the next

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line, the perimeter.

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And said the reform at the call and save the project and execute the program.

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Now we can see the output area is 600 and perimeter is 100.

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In the following example, we have a rectangle function that takes two parameters, computes the breakdown

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the perimeter and area, and returns on the two values in order not to prolong the time of decision,

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we finish it and we will continue the content in the next session.

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Goodbye.