Root- Returns the root of a number

Function that returns the root of a number using any radical.

- Root(N[,R]): float

Parameters:

- (num) N: Rooting number;

- (num) R: Radical number (optional).

Description:

Use the Root function to derive the root value of a number using any radical. The Root function is the reverse of the Pow function, which raises a number to power. If the radical is not specified the default is 2 (square root).