I was browsing wikipedia (https://en.wikipedia.org/wiki/Bitwise_operation) when I came across this mathematical equivalent of the bitwise NOT operation.
I can't find a derivation of this anywhere and wondered if anyone knows where it comes from?
Asked
Active
Viewed 30 times
0
-
"The bitwise complement is equal to the two's complement of the value minus one. If two's complement arithmetic is used, then NOT x = -x − 1." – Mauro ALLEGRANZA Jun 15 '21 at 08:27
-
The two's complement of an N-bit number is defined as its complement with respect to $2^N$. – Mauro ALLEGRANZA Jun 15 '21 at 08:32
-
Welcome to MSE. It is in your best interest that you type your questions (using MathJax) instead of posting links to pictures. – José Carlos Santos Jun 15 '21 at 08:37