Unicode: F762. Uninterpretable element.  n  is used on output to indicate n omitted pieces in an expression obtained from Short or Shallow. \[RightSkeleton] indicates the ...

Unicode: 21A6. Infix arrow operator. x ↦ y is by default interpreted as RightTeeArrow[x,y]. Used in mathematics to indicate a transformation, often the action of a mapping on ...

Unicode: 266F. Letter-like form. Used to denote musical notes. Sometimes used in mathematical notation, typically to indicate some form of numbering or indexing. Not the same ...

Unicode: 2043. Uninterpretable element. ⁃ name ⁃ is used on output to indicate an expression that has head name, but whose arguments will not explicitly be given. ...

Unicode: F520. Alias: Esc sq Esc. Prefix operator.  x is by default interpreted as Square[x]. Used in mathematical physics to denote the d'Alembertian operator. Sometimes ...

Unicode: 22C6. Alias: Esc star Esc. Infix operator. x ⋆ y is by default interpreted as Star[x,y]. Used to denote convolution and generalized forms of multiplication. ...

Unicode: 2243. Alias: Esc ~= Esc. Infix similarity operator. x ≃ y is by default interpreted as TildeEqual[x,y]. Used to mean approximately or asymptotically equal. Also used ...

Unicode: 223C. Alias: Esc ~ Esc. Infix similarity operator. x ∼ y is by default interpreted as Tilde[x,y]. Used in mathematics for many notions of similarity or equivalence. ...

"EvaluatorQuit" is a front end token that terminates the specified kernel.

"EvaluatorStart" is a front end token that starts the specified kernel.