Arrange your binary number in Four number groups from right to left add zero's if needed.
So if your binary is 11011101 it will be 1101 1101
now replace your group with
0-0000
1-0001
2-0010
3-0011
4-0100
5-0101
6-0110
7-0111
8-1000
9-1001
A-1010
B-1011
C-1100
D-1101
E-1110
F-1111
and you get your number in hex
1101 1101 == DD
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Group the binary representation into quartets either side of the "decimal" point. then convert as follows:
0000 = 0, 0001 = 1, 0010 = 2, 0011 = 3,
0100 = 4, 0101 = 5, 0110 = 6, 0111 = 7,
1000 = 8, 1001 = 9, 1010 = A, 1011 = B,
1100 = C, 1101 = D, 1110 = E, 1111 = F.
It is used because it is easier to convert to and from binary to hexadecimal than decimal, and it uses less characters than binary. For instance: decimal: 65535 hex: FFFF binary: 1111111111111111
If the above is decimal then in hexadecimal it is 2964492C2. If it is binary then in hexadecimal it is 7DA. If it is octal then in hexadecimal it is 49241208.
Hexadecimal number system is a number sytem with a Base of 16. The 'regular' system which we use every day is base-ten (decimal), with the digits 0-9.Having a base 16 system makes it easier to represent values of computer memory, as computers deal in binary (base 2), where every value is either one or zero (on or off).With hexadecimal, the digit values range from zero to fifteen, so symbols are needed to represent ten, eleven, ... fifteen as single digits. The letters A through F were chosen, so:A represents tenB = elevenC = twelveD = thirteenE = fourteenF = fifteen
To subtract binary numbers using the 2's complement method, follow these steps: Convert the number you want to subtract into its 2's complement form by inverting all the bits and adding 1. Add this 2's complement number to the other binary number you want to subtract from. Discard any overflow bit if it occurs. The result will be the subtraction of the two binary numbers in binary form. This method allows for subtraction in binary by using the concept of 2's complement to handle negative numbers.
The value of x in hexadecimal is a numerical system that uses 16 symbols, 0-9 and A-F, to represent numbers.