which 4-bit number is equal to it's 2's complement number?

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which 4-bit number is equal to it's 2's complement number?

2006-10-14 19:59:57 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help

3 answers

The two's complement of a binary number is obtained by changing each digit to its complement and adding one. The two's complement of 1011 is 0100 + 1 = 0101. If you take the 2's complement of 0000, the result is 1111 + 1 = 10000; if you only take 4 digiits, then the number is 0000.

2006-10-14 20:28:45 · answer #1 · answered by gp4rts 7 · 0⤊ 0⤋

for 2's complement, take the complement of each and add 1.

if we take 1000
complement is 0111
adding 1 to 0111 = 1000

2015-11-06 07:33:28 · answer #2 · answered by Matheesha 1 · 0⤊ 0⤋

Zero.

2006-10-14 20:06:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋