The radical sign may be one of the stranger-looking mathematical symbols, but its strange looks should not fool anyone. The radical sign has a straightforward meaning. The sign that is used when finding the square root or cube root, , is called the...

In mathematics, an nth root of a number a is a number b such that bn=a. When referring to the nth root of a real number a it is assumed that what is desired is the principal nth root of the number, which is denoted \sqrt[n]{a}...