Yesterday we posted about a bug found in Windows 8:
And now its turn of Windows Calculator. Almost all Windows users use the default Calculator application which comes preinstalled with Windows OS. But did you know it contains a bug which has not been fixed by Microsoft yet. This bug exists in almost all Windows versions including Windows XP, Vista, 7 and Windows 8.
The bug appears when you try to calculate following:
If you can't understand the above mentioned equation, lets describe it in details. The above command first calculates Square root of 4 and then subtracts 2 from the result.
Square root of 4 is 2 and when we subtract 2 from it, the end result should be 2-2=0 but Calculator shows a long series of numbers in the result.
If you use the Standard mode of Calculator, the result would be displayed as -1.068281969439142e-19 and if you use Scientific mode, you'll get the result as -8.1648465955514287168521180122928e-39 as shown in following screenshot:
Its definitely a bug in Calculator. You might get different result in different Windows versions but the result will never be correct i.e. 0.
Following video shows the bug live in action:
The only reason behind this bug which I can figure out might be the way computer calculates square root. The square root of 4 is calculated as 1.9999..... up to infinite by computer and it shows the result as 2 using the round off mechanism. And when we subtract 2 from the result, it actually subtracts it from 1.9999..... up to infinite and shows the big series of numbers in minus.
Anyway after all the facts or assumptions, its definitely a bug similar to Notepad bug which also exists in all Windows versions:
Thanks to our reader "Anish Mehta" for sharing this bug...