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NOT bit-wise operation question - ajayachander - Jan-27-2020
x = 4
y = 1
a = ~x
print(a)
Bit operation on 4 which equates to binary 100
what would be NOT operation on it?
I assumed that it would be binary 011 equating to decimal 3.
but the OpenEDG (edube.org) says the answer is decimal (-5) with no explanation.
Can someone throw a quick explanation as I didn't get its basics right probably.
RE: NOT bit-wise operation question - stranac - Jan-27-2020
This has a pretty good explanation: https://wiki.python.org/moin/BitwiseOperators
RE: NOT bit-wise operation question - ajayachander - Jan-27-2020
(Jan-27-2020, 07:58 AM)stranac Wrote: This has a pretty good explanation: https://wiki.python.org/moin/BitwiseOperators
Thank you
Apparently, a NOT gives -x-1
and in this case, it would be ~x = -100 - 1
~x = - 101 which equals to -5 decimal
Cheers