How to convert binary number to decimal integer?

I'm trying to convert from binary number to decimal integer. I have some clues that I have to use predefined function bin2dec() or dec2bin(). Example: 00101101110 --> -657 an example was given by my professor. However, I have no idea how he converted from this binary number to -657. I try to do by hand, converting 00101101110, I got 366. Using bin2dec(), I got 366.

[David Goodmanson]

Hi Hoat,

It appears that twos complement or ones complement is involved here although I could not quite get there. Somebody will know.

Answer 1

[Jose Marques]

Hello.

Maybe this can be helpfull for you

https://www.mathworks.com/matlabcentral/answers/98649-how-can-i-convert-a-negative-integer-to-a-binary-string-in-other-words-how-can-i-find-two-s-comple