The radical symbol is used in math 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 . For example, the cube root of the number is represented by the following expression.
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.