Getting roots of a number

Square Root

Use Math.sqrt() to find the square root of a number

Math.sqrt(16)   #=> 4

Cube Root

To find the cube root of a number, use the Math.cbrt() function

Math.cbrt(27)  #=> 3

Finding nth-roots

To find the nth-root, use the Math.pow() function and pass in a fractional exponent.

Math.pow(64, 1/6) #=> 2