Double tilde explained

Double tilde (~~ or ≈) may refer to:

• • • Approximation Double negation Smart match operator in Perl,
• In PostgreSQL the operator is equivalent to
• In certain programming languages, ~ transforms a value into an integer and takes its complement, and so ~~ (sometimes called 'two tildes' to indicate a form of double negation) is a way to transform a value into an integer.
• , a tilde diacritic that spans a pair of adjacent characters:
• ~~~]], an EP by Ana Roxanne}