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Understanding functions and Python.

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We'll exploring a key concept in programming, function, and by the end, you'll be able to understand

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what is a function, working with function.

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What is a function?

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Function performs a specific operation on it, like 2 plus 2, and then it gives you an output.

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4. It's all about transforming inputs into outputs based on set rules.

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Advantages.

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Efficiency saves time by reusing code.

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Organization keeps programs neat.

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Simplicity makes fixing code easier.

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Defining a function.

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Creating a function in Python is easy.

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You start by writing the word DEF, then give your function a name.

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After the name, add parentheses, and finish with a colon.

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Let's create a function that adds two numbers together.

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DEF add a, b, consider, a as the age of girl, and b as age of boy.

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Return, a plus b.

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We use DEF to tell Python we are creating a function.

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Add parentheses is the name of our function.

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Return, a plus b is output.

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Calling a function.

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Use the function name with parentheses.

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DEF add a, b.

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Return a plus b.

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Result equal to add 3, 5.

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Print result.

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Here, add 3, 5.

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Calls the function to add the numbers.

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Parameters and arguments.

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When you ask a function to do something, you often need to provide extra information called a parameter or argument.

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Here, 3 and 5 are the arguments that the function uses to calculate the sum.

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Returning values from functions.

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Here, add 3, 5.

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Returns is result 8.

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Click run to see the results.

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Functions in Python organize your code and make it reusable.

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You can create similar functions for different tasks, improving efficiency.