swift

MultiplyTwoNumbers()

Parameters: number1: Double, number2: Double

number1 and number2 are the two numbers to be multiplied

Returns: Returns the multiplication result of two numbers

This swift function receives two integers as parameters and returns the multiplication of these numbers.

variables
functions
multiplication operator
return statements
Easy dificulty

Multiplying Two Numbers in Swift

Welcome, fellow programmer! This blog post will guide you through a simple yet fundamental task in Swift programming - creating a function to multiply two numbers. Stay tuned and walk through the steps below to create concise and efficient function. It's easy, straightforward, and a great skill to have in your toolkit. Let's get down to business!

Step 1: Define the Function Signature

In Swift, you want to define your function with a clear and descriptive name. For this case, we can name our function multiplyTwoNumbers. The function should have two parameters, both of which will be of type Int.

func multiplyTwoNumbers(_ num1: Int, _ num2: Int) {
    
}

Step 2: Plan out the Function

This function is simple, as we only need to multiply the two input integers. So within our function definition, we use Swift's * operator to multiply the arguments.

Step 3: Implement the Function

Let's implement our plan within the function.

func multiplyTwoNumbers(_ num1: Int, _ num2: Int) {
    let result = num1 * num2
}

Step 4: Return the Result

In the function, we now need to add the return keyword to ensure our function outputs the result.

func multiplyTwoNumbers(_ num1: Int, _ num2: Int) -> Int {
    let result = num1 * num2
    return result
}

Step 5: Call the Function

Finally, let's test our function by calling it and printing the result:

let multiplicationResult = multiplyTwoNumbers(4, 5)
print(multiplicationResult) // Output should be 20

Conclusion:

We have successfully created a function that multiplies two integers. The function multiplyTwoNumbers takes two integers as parameters and returns their product.

Here's the final code:

func multiplyTwoNumbers(_ num1: Int, _ num2: Int) -> Int {
    let result = num1 * num2
    return result
}

let multiplicationResult = multiplyTwoNumbers(4, 5)
print(multiplicationResult)

Learn function in:

Multiplication

A mathematical operation signified by the sign 'x', used to combine numbers.

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Mathematical principle

The multiply function illustrates the mathematical multiplication operation using `*` operator. When `a` and `b` are two integer numbers, multiplying `a` by `b` gives a product. For example, if `a=3` and `b=4`, then the multiplication `a * b` gives `12`.

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