#### testing test

##### Member level 3

I want to find the 2's complement of -127 in MATLAB for 8 bits. I want to find 2's complement of a. So, I multiply it by -1 and takes its dec2bin:

Code:

```
a=-127
a=-1*a;
b=dec2bin(a,8);
```

Now b = '01111111'

I want to invert all the bits of b and add 1 to it. How can I do it?

Thank you.