"Easter Eggs (Definition) - A hidden message or feature in an application."
What is the square root of four? The answer is two,
And what do you get if you subtract two from two? Zero, right?
Now let’s do the above calculation using the Windows calculator. Type in 4, take the square root and from the result subtract 2. What do you get now?
Step 1: In calculator press 4
Step 2: Press the Sqrt button and you will get 2 which is the right answer.

What is the square root of four? The answer is two,
And what do you get if you subtract two from two? Zero, right?
Now let’s do the above calculation using the Windows calculator. Type in 4, take the square root and from the result subtract 2. What do you get now?
Step 1: In calculator press 4
Step 2: Press the Sqrt button and you will get 2 which is the right answer.