Square Root Clock

All About the Square Root Symbol

The square root symbol was first used during the 16th Century in Rudolff's Coss. It has been suggested that it originated as an altered form of lowercase r, which represented the Latin "radix" which means "root".

The Square Root Symbol In HTML Docs

There's a couple different ways to make a square root symbol in an html page. The numeric character reference is the numeric representation of a given character. The numeric character reference uses the following format:

&#Numeric character reference;

And so, to display the √ symbol with a numeric character reference of 8730, enter:

√

Character entity reference is the standard name of a given character. To use the character entity reference in your HTML code, use the following format instead:

&Character entity reference;

For example, to display the √ symbol, use the character entity reference of radic:

√

Making Square Root Symbol on Keyboard

To type the Square Root Symbol on your computer keyboard, simply hold down the alt key and type 251 on the number pad.

The World Famous Square Root Clock