0x7E

0x7E is the hexadecimal representation of the integer 126. In ASCII and Unicode, this value corresponds to the tilde character, written as ~. The Unicode code point for this symbol is U+007E, and in UTF-8 it remains a single byte for values in this range.

In everyday text, the tilde is used as a diacritic in some languages, as a general symbol for approximation or similarity in mathematics and computer science, and as a informal marker in various contexts. In programming and computing, the tilde serves several practical roles: as the bitwise NOT operator in many C-like languages, as a unary operator for negation in some syntaxes, and as a symbol with historical usage in various domains.

Common software-related uses include its role in file paths and shell environments: in many operating systems, the tilde expands to the current user’s home directory in command shells and scripting. In web technologies and URLs, the character can be percent-encoded as %7E, though many modern systems allow the tilde to appear unescaped in URLs.

In data communication, 0x7E is notable as a frame delimiter in several protocols, such as HDLC and PPP, where 0x7E marks the start and end of a data frame. It is typically paired with an escape mechanism (e.g., 0x7D) to distinguish data from control information during transmission.

Overall, 0x7E is primarily recognized as the hex code for the tilde, a versatile symbol with widely varied roles across encoding, programming, networking, and user interfaces.