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Root 3 on Iphone Calculator

Reviewed by Calculator Editorial Team

Calculating cube roots on your iPhone calculator is straightforward once you know the correct sequence of steps. This guide will walk you through the process, explain the mathematical formula, and provide practical examples to help you understand how to find cube roots using your iPhone's built-in calculator.

How to Calculate Cube Root on iPhone

Your iPhone's calculator has a built-in function for calculating cube roots. Here's how to use it:

  1. Open the Calculator app on your iPhone.
  2. Tap the "2nd" function button (located at the top of the calculator).
  3. Look for the "x³" button (which now shows "³√x" when in 2nd function mode).
  4. Enter the number you want to find the cube root of.
  5. Press the "³√x" button to calculate the cube root.

Note: The iPhone calculator uses the "2nd function" mode to access the cube root function. Make sure you're in this mode before attempting to calculate cube roots.

Cube Root Formula

The cube root of a number x is a value that, when multiplied by itself three times, gives the original number x. Mathematically, this is represented as:

³√x = y where y × y × y = x

For example, the cube root of 27 is 3 because 3 × 3 × 3 = 27.

Worked Example

Let's calculate the cube root of 27 using the iPhone calculator:

  1. Open the Calculator app.
  2. Tap the "2nd" function button.
  3. Enter the number 27.
  4. Press the "³√x" button (which appears as "x³" in normal mode).
  5. The calculator will display 3 as the result.

This confirms that 3 is indeed the cube root of 27, as 3 × 3 × 3 equals 27.

Frequently Asked Questions

How do I find the cube root of a number on my iPhone?
Use the "2nd" function mode in the Calculator app, then press the "³√x" button (which appears as "x³" in normal mode) after entering your number.
What is the cube root of 3?
The cube root of 3 is approximately 1.44225, as this number multiplied by itself three times equals 3.
Can I calculate cube roots for negative numbers on my iPhone?
Yes, the iPhone calculator can handle negative numbers for cube roots. For example, the cube root of -8 is -2.
Is there a difference between square root and cube root?
Yes, a square root finds a number that, when multiplied by itself, gives the original number, while a cube root finds a number that, when multiplied by itself three times, gives the original number.