Radical Symbol

Symbol Format Data
Code Point
U+221A
TeX
\sqrt{}
SVG

Usage

In math, the radical symbol is used to represent taking the square root of an expression. Typically the radical symbol is used in an expression like this:

In plain language, this means “take the square root of the number four”.

The radical symbol is also used to represent taking the -th root of a number when a number is placed above the start of the symbol as shown below:

In plain language, this means “take the -th root of the number ”. Read more…

Links

Returns the square root of the provided expression.

The radical operator returns the n-th root of the provided expression. The radical operator is an alternative way of writing a fractional exponent.