Root algorithm

N-th degree - a method of approximate cal culation of the value of the element of arithmetic degree of a po sitive number. This algorithm is characterized by very fast conve rgence. Algorithm: root algorithm results in a simple manner with the Newton-Raphson method of finding the zeros of the function. In typical cases, this method is very fast convergent - error decreases as the square function, which in practice means that at each step doubles the number of digits accurate approximation.