A Squared Button on Calculator

A Squared Button on Calculator

Squared Button on Calculator

The Threshold was designed by artists Will Burtin and Zach Lieberman. They wanted a design that had to be limited to just the numeric keys, so they suggested a solution called "Squared Button on Calculator," which they soon realized was a pretty difficult design to execute.


Appears at the top left-hand corner of the calculator display to remind you that the button has been pressed. It disappears when you press another key. Some keys also have a third function, printed above the key in red. These functions allow numerical values stored in the calculator memories to be used within calculations and are accessed by pressing the.

When describing how to use various calculator functions, this guide gives the exact keys that you need to press using the symbols shown on the keys. This is known as a ‘key sequence’. If the key sequence accesses the second function of a key, or a function from a menu, the name of this function will be given in brackets at the appropriate point in the key sequence. Names in brackets are thus not keys that you press but simply describe the function that is accessed using the previous key sequence. For example, to turn off the calculator, press (Source: www.open.edu)


To calculate a square root, you'll use the square root button on your scientific calculator. To use this button, you'll need to know how your calculator operates. Some calculators have you input the number first and then push the square root button. Others have you push the square root button first followed by your number. So to find the square root of 5, for example, you'll push these buttons if your calculator has you input the number first.

You can use the custom root button to find cube, fourth, and fifth roots, or any positive integer root. To use this button, you'll need to look at your calculator's manual. Some calculators have you input the number first, then the root button, and then your desired root. Others have you do these operations in reverse starting with your desired root, followed by the root button, and the number. (Source: study.com)


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