\[FinalSigma] (Mathematica Character Name)

Unicode: 03C2. Alias: Esc fs Esc. Greek letter. Used in written Greek when σ occurs at the end of a word. Not commonly used in technical notation. Not the same as \[Stigma].

\[ImaginaryJ] (Mathematica Character Name)

Unicode: F74F. Alias: Esc jj Esc. Letter-like form with built-in value.  is interpreted by default as the symbol I, representing Sqrt[-1]. Used in electrical engineering.

\[InvisibleComma] (Mathematica Character Name)

Unicode: F765. Alias: Esc , Esc. Structural element with built-in meaning. \[InvisibleComma] is by default not visible on display, but is interpreted on input as an ordinary ...

\[LeftBracketingBar] (Mathematica Character Name)

Unicode: F603. Alias: Esc l| Esc. Matchfix operator.  x  is by default interpreted as BracketingBar[x]. Used in mathematics to indicate absolute value (Abs), determinant ...

\[LeftDoubleBracketingBar] (Mathematica Character Name)

Unicode: F605. Alias: Esc l|| Esc. Matchfix operator.  x  is by default interpreted as DoubleBracketingBar[x]. Used in mathematics to indicate taking a norm. Sometimes used ...

\[LeftDoubleBracket] (Mathematica Character Name)

Unicode: 301A. Alias: Esc [[ Esc. Compound operator with built-in evaluation rules. m〚i,j,… 〛 is by default interpreted as Part[m,i,j,…]. Sometimes used in mathematics to ...

\[MediumSpace] (Mathematica Character Name)

Unicode: 205F. Alias: Esc ␣␣ ␣ Esc. Spacing character. Width: 4/18 em. Interpreted by default just like an ordinary \[RawSpace]. Sometimes used in output as a separator ...

\[Mho] (Mathematica Character Name)

Unicode: 2127. Alias: Esc mho Esc. Letter-like form. Used to denote the inverse ohm unit of conductance. "Mho" is "ohm" spelled backwards. Occasionally called 'agemo' in pure ...

\[RawStar] (Mathematica Character Name)

Unicode: 002A. Raw operator. Equivalent to the ordinary ASCII character with code 42. In addition to one-dimensional uses, x^* is by default interpreted as SuperStar[x]. x^* ...

\[RawWedge] (Mathematica Character Name)

Unicode: 005E. Raw operator. Equivalent to the ordinary ASCII character with code 94. In addition to one-dimensional uses, OverscriptBox[x, ^] is by default interpreted as ...