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How to determinate if a series of 1’s and 0’s is negative

September 12, 2012 by Rick Hernandez Leave a Comment

positive one     0001          negative one     1111
positive two     0010          negative two     1110
positive three   0011          negative three   1101
positive four    0100          negative four    1100
positive five    0101          negative five    1011
positive six     0110          negative six     1010
positive seven   0111          negative seven   1001
zero             0000          negative eight   1000

What is the two’s complement scheme?

1- find the positive representation

2-compliment or invert the numbers example 1000 would be 01111 changing all the positive bit’s to negative.

3-add 1 at the end

 

 

 

Rick Hernandez

I always had a passion for the field of STEM (Science, Technology, Engineering, and Math) and I knew I wanted to do something to make a difference in the world. I just didn’t know where to start. I was an immigrant in a new country, grew up in a tough environment, and wasn’t sure how… Read More

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