1's Complement and 2's Complement of Gray Code and 2's Complement of Signed Gray Code

For enriching Gray code algorithm,the negation and complement of Gray code and the 2 s complement representation of signed Gray code are studied.The conclusion of negating the first bit of Gray code is its 1 s complement and then adding 1 is its 2 s complement is gotten.The weight of symbol bit of signed Gray code is—1, and weight of symbol bit of signed binary is—2~(n-1).