Find the Cube Root on a Graphing Calculator

Determining the root of a number requires finding a value that, when multiplied by itself a certain number of times, results in the original number. For example, the square root of 9 is 3 (3 x 3 = 9). The cubed root of a number is a value that when multiplied by itself three times, results in that number. As an example, the cubed root of 27 would equal 3 (3 --- 3 --- 3 = 27). While some roots can be calculated in your head, it is usually easier to find the cubed root of a number on a graphing calculator.

Instructions:

Using the Math Function
1. Enter the number you need to find the cubed root of into the calculator.

2. Press the "math" key. Scroll though the list of characters until you come to the cubed root sign, which resembles a long division sign with the numeral "3" over a hook at the front of the sign.
       
3. Hit "enter" to calculate the cubed root.
  

Without Using the Math Function
1. Enter the number you need to find the cubed root of into the calculator.

2. Press the "to the power" function key. This is the carrot (^) key, generally located just above the numerical keypad.

3. Open a parenthesis set, enter 1/3 and close the parenthesis. For example: X ^(1/3).

4. Press enter to display the cubed root.