Hexadecimal numerals are used very oftem in computing world as the representation of binary data, as they provide a more human-friendly representation of binary-coded values. Hexadecimal consists of a symbol set made up of
0 - 9,
A - F. If you are proficient in using computer or already using it for a long time, you may notice the code or text like
0xBEEF9992. Those text are hexadecimals.
The rule of thumb of indentifying hexadecimals code is by looking at whether the code is in pair (even number of length) and the character which made text.
If the character is consist of
0 - 9 and
A - F, and it is in pair (even number length) such as
0xBABEFACE88, then it is can be considered in hexadecimal notation.
Note : the length of hexadecimal number can be odd number, but it is very uncommon. On most computers/ systems, hexadecimal code is padded by zero (
Hexadecimal code also can be seen in other form such as:
0xBE 0xEF 0xBA 0x22
\xBE \xEF \xBA \x22
Well, if you seeing from the perspective of the creator, it is a cool thing to represent 256 possible characters or 1 byte. For example,
0x99 can used to represent decimal number of
Imagine you can use
0xFFFFFF to represent decimal number of
So, the following word :
Represented in Hexadecimal (every line is the same):
52 6f 67 65 72 20 54 68 61 74 21 (" " prefix) 0x52 0x6f 0x67 0x65 0x72 0x20 0x54 0x68 0x61 0x74 0x21 (" 0x" prefix)
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