//

// may refer to:

//, a comment (computer programming) indicator in several programming languages include C, C++ and Java.
//, the root directory path in Domain-OS
//, the operator for integer division in Python 2.2+
//, the empty pattern in Perl, which evaluates the last successfully matched regular expression
//, the logical defined-or operator in Perl, called the null coalescing operator in other programming languages.
//, the authority indicator in the URI scheme.
//, the descendant-or-self axis specifier in XPath.

See also