javascript

findCubeRoot()

Parameters: number n (float)

The number to calculate the cube root of

Returns: Cube root of the input number (float)

The findCubeRoot function is used to calculate the cube root of a given number. It makes use of the in-built Math.cbrt() function in JavaScript.

functions
mathematical operations
Easy dificulty

How to Write a Function to Find the Cube Root in JavaScript

Hello fellow programmer! This post will guide you through the process of creating a JavaScript function named 'findCubeRoot'. This function will take one input: a number, and it will return the cube root of said number. The function will use JavaScript's built-in Math object. Beyond the function creation, you'll also be shown how to call this function, passing in a number as an argument. Relax, take your time & enjoy the journey of coding.

Step 1: Understanding the Problem

Before we start coding, let's have a basic understanding of what we need to do. The task requires us to write a function in JavaScript that will calculate the cube root of a given number.

Step 2: Setting Up the Function Structure

We start by defining the function. We'll call the function findCubeRoot, and it will accept one parameter, which is the number we want to find the cube root of.

So, our function looks like this:

function findCubeRoot(num) {

}

Step 3: Return the CubeRoot

In JavaScript, the Math.cbrt() method is used to find the cube root of a number. We can use this method inside our function to get the cube root of the number passed to it.

Here is how it looks:

function findCubeRoot(num) {
    return Math.cbrt(num);
}

Step 4: Testing the Function

Now our function is ready, it's time to test it. We need to call our function with a number for which we want to find the cube root.

This is how the call to the function will look like:

console.log(findCubeRoot(8)); // Output: 2

The function correctly returns 2, which is the cube root of 8.

Step 5: Conclusion: Full Code

The full code for our findCubeRoot function is shown below:

function findCubeRoot(num) {
    return Math.cbrt(num);
}

console.log(findCubeRoot(8)); // Output: 2

As seen above, we've successfully created the findCubeRoot function in JavaScript. This function takes a number as an argument and returns its cube root. Thanks to JavaScript's built-in Math.cbrt() method, our function is concise and efficient.

Learn function in:

Cube Root Calculation

Calculating the cube root of a given number

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Mathematical principle

The cube root of a number is a value that, when cubed, gives the original number. For example, the cube root of `8` is `2` because `2*2*2 = 8`. In JavaScript, this is achieved using the `Math.cbrt(number)` function.

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