The radical symbol by itself is used in math to represent taking the square root of an expression. It is also used to represent taking the th-root of a number when a number is place above the start of the symbol. Typically the radical symbol is used in an expression like this:
In plain language, this means take the square root of the number four. Shown below are various computer formats for the radical symbol.
The radical symbol by itself is used to denote taking the square root of a number.
The radical operator returns the n-th root of the provided expression. The radical operator is an alternative way of writing a fractional exponent.