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How to represent negative numbers in binary
The binary representation of negative numbers usually uses two's complement notation. If you want to know more about negative binary, you can read the article below this topic.
How to represent negative numbers in binaryThe binary representation of negative numbers usually uses two's complement notation. The steps are: 1. Convert the negative number into the binary representation of its corresponding absolute value. For example, the absolute value of -5 is 5, and its binary representation is 101; 2. Convert this binary number to its complement. The complement number is calculated by inverting the binary representation of the corresponding positive number (0 becomes 1, 1 becomes 0), and then adds 1. For the above example, after inverting, we get 010, and adding 1 to get 011; 3. The binary number obtained is the complement representation of the negative number. Therefore, the two's complement representation of -5 is 011.
Why are negative numbers in computers stored in two's complement?The use of two's complement storage for negative numbers in computers can simplify the basic computer arithmetic circuits, so that addition and subtraction only need to be implemented with addition circuits, and addition is used instead of subtraction. The complement is the smallest positive congruent remainder of a negative number, so adding a negative number and subtracting a positive number can both be represented by adding a complement.
Which key on the computer represents negative numbers?Negative numbers can be represented on computers using the "minus" key. The minus sign is the key after the number 0 in the second row of keys on the computer keyboard. The minus sign can also be represented by the minus sign on keyboards with separate numeric keys.
What is the complement of a negative number?The complement of negative numbers is a binary encoding method for representing negative numbers. The following is the calculation method of the complement of negative numbers: 1. Convert the absolute value of the negative number into binary form; 2. Invert each bit of the binary number; 3. Just add 1 to the result you get.
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