calculating in command prompt

friends do u know that The command processor CMD.EXE comes with a mini-calculator that can perform simple arithmetic on 32-bit signed integers u can perform unary, arthimetic, logical and bitwise calculations in it:

try this
goto run -->type cmd press enter

C:\>set /a 2+2
4
C:\>set /a 2*(9/2)
8
C:\>set /a (2*9)/2
9
C:\>set /a "31>>2"
7

Note that we had to quote the shift operator since it would otherwise be misinterpreted as a "redirect stdout and append" operator.


interesting isnt it...........