functions can have parameters (inputs) and return values (outputs). Here's a more detailed explanation of parameters and return values:

Parameters:

Parameters are variables that you define in the function's signature. They act as placeholders for the values that you'll pass to the function when calling it.

def add_numbers(a, b):
    sum_result = a + b
    return sum_result

In this example, a and b are parameters. When you call the add_numbers function, you provide actual values for these parameters:

result = add_numbers(3, 5)

Here, 3 and 5 are the actual arguments passed to the function, and they get assigned to a and b, respectively.

Return Values:

Functions can return values using the return statement. The returned value can be used in the calling code.

def add_numbers(a, b):
    sum_result = a + b
    return sum_result

In the example above, the add_numbers function returns the result of the addition (sum_result). When you call the function, you can capture the returned value in a variable:

result = add_numbers(3, 5)
print("Sum:", result)

Here, result will be assigned the value returned by the function, and it will print "Sum: 8" in this case.

Multiple Parameters and Return Values:

Functions can have multiple parameters and return multiple values.

def calculate_stats(numbers):
    total = sum(numbers)
    average = total / len(numbers)
    return total, average

Here, the calculate_stats function takes a list of numbers, calculates the total and average, and returns both values. When calling the function:

numbers = [1, 2, 3, 4, 5]
total, average = calculate_stats(numbers)
print("Total:", total)
print("Average:", average)

You can capture both the total and average values returned by the function in separate variables.

This covers the basics of parameters and return values in Python functions. They allow you to create reusable and modular code by encapsulating logic and data.