Find the square root of any number. Works with decimals and large numbers.
The square root of a number X is a value Y such that Y x Y = X.
For example, the square root of 144 is 12, because 12 x 12 = 144.
A perfect square is a number whose square root is a whole number (e.g., 1, 4, 9, 16, 25, 36...).
Negative numbers do not have real square roots. The square root of a negative number is an imaginary number involving i (the imaginary unit).