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Why are negative numbers in binary represented in two's complement form - binary addition and subtraction

2022-08-10 05:03:00 【Ghost Rider】

A little explanation of why negative numbers of binary data types are represented in two's complement form

The editor's purpose is to do binary addition and subtraction

1+(-1)

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Obviously the answer is wrong

1+(-1)

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Of course, we need multiple verifications, such as 5-3

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Verification successful

That's it, it may seem strange and incomprehensible, but this representation is actually very rigorous and correct, isn't it amazing?

If we use out-of-range binary addition and subtraction, such as 127 + 1

127 + 1

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