* (disambiguation)

* is an asterisk, a typographical symbol or glyph.

* may also refer to:

Music

• "*", a song from the 2000 album Lego by Sadist
• "*", a song from the 2005 album Before the Dawn Heals Us by M83
• "Asterisk" or "*: Asterisk", a 2005 song by Orange Range
• *, the logo for the alternative rock band the Red Hot Chili Peppers

Computing and telecommunications

See also: Asterisk § Computing

• In most programming languages, the operator for computing a product — see Multiplication sign § Similar notations
  • For an exception, see APL (programming language) § Exponentiation
• In glob-style syntax, the wildcard character representing any (possibly empty) sequence of characters
• In standard regular expression syntax, the postfix operator for repeating the operand zero or more times
• In many lightweight markup languages:
  • The prefix and suffix for bold or italics formatting
  • The prefix for an unordered (bulleted) list
• In Ruby and Python, the prefix operator for expanding an iterable into arguments to a function, or for collecting function arguments into a list — see Asterisk § Programming languages
• In C and some descendants, the operator (between the type and name) for declaring a pointer, and the prefix operator for dereferencing one
• In Perl, the prefix operator for a typeglob
• In Common Lisp's "earmuff convention", the prefix and suffix for the name of a special (dynamically scoped) variable
• A line comment prefix in CONFIG.SYS on PTS-DOS
• Star key (telephony), the beginning of a vertical service code (VSC)

Mathematics

See also: Asterisk § Mathematics

• ∗, star (game theory), the value given to the game where both players have only the option of moving to the zero game
• *, Kleene star, the postfix operator for repeating the operand zero or more times
• $*$, the infix operator for the convolution of two functions
• $*$, the infix operator for the free product of two groups
• ${}^{*}$, a suffix operator for the conjugate transpose, or more generally, the Hermitian adjoint
• *, the suffix operator for a *-algebra, a structure consisting of two involutive rings, where one is commutative, and the other has the structure of an associative algebra over the first
• *, the suffix operator for a *-autonomous category, a symmetric monoidal closed category equipped with a dualizing object
• *, the prefix operator for a *-finite set, also called "hyperfinite"
• *, the suffix operator for the involution of a *-regular semigroup

Other uses

• In cricket, the suffix for not out after a batter's score
• In population genetics, the suffix for a paragroup of a haplogroup
• In historical linguistics, the prefix for a reconstructed, ungrammatical, or otherwise hypothetical form
• In astronomy, often represents a star
• In typography, used to refer a reader to a footnote or an endnote

See also

• Asterisk § Usage
• Blackstar (album), a 2016 album by David Bowie, stylized as ★
• *Star, an abstract strategy game
• Asterisk (disambiguation)
• Splat (disambiguation)
• Star (disambiguation)
• ** (disambiguation)
• *** (disambiguation)
• *= (disambiguation)
• Special:PrefixIndex/*
• A* (disambiguation)
• C* (disambiguation)
• F* (programming language)
• i*, a modelling language
• L*, a learning algorithm outputting a deterministic finite automaton
• /* and */, the prefix and suffix for a block comment in C-family computer languages