The square root of 2 is a positive real number that, when multiplied by itself, equals the number 2. It may be written in mathematics as {\sqrt {2}} or 2^{{1/2}}, and is an algebraic number.
The square root of 2 is the number which when multiplied with itself gives the result as 2. It is generally represented as √2 or 2½. The numerical value of square root 2 up to 50 decimal places is as follows: √2
