0A

0A is a designation used in multiple domains, and its meaning depends on the context. In computing and information encoding, 0A most commonly denotes the hexadecimal value 0x0A, which equals decimal 10.

In ASCII and Unicode, the value 0x0A represents the line feed character, a control code used to move to the next line. In Unicode this character is named Line Feed and has the code point U+000A. In data formats and text transmission, 0x0A is widely used as a newline marker.

Regarding newline conventions, many Unix-like systems represent a line break with LF (0x0A) alone. Windows systems typically use a two-byte sequence consisting of Carriage Return (0x0D) followed by Line Feed (0x0A), while some older or specialized systems differ in their treatment of line endings.

In programming, the 0x0A byte is commonly produced by escape sequences such as "\n" in languages like C, C++, Java, and Python. When these languages interpret string literals, 0x0A is emitted to create a newline in text output.

In chemistry, 0A appears in older IUPAC-style group labeling of the periodic table. Group 0A referred to the noble gases, corresponding to the modern Group 18 elements, such as helium, neon, argon, krypton, xenon, and radon.

Beyond these contexts, 0A can appear as a label or code in various specialized fields, where its meaning is specific to the domain and not universally standardized.