\[FormalU] (Mathematica Character Name)

Unicode: F814. Alias: Esc $u Esc. Letter-like form. Used to represent a formal parameter that will never be assigned a value.

\[FormalV] (Mathematica Character Name)

Unicode: F815. Alias: Esc $v Esc. Letter-like form. Used to represent a formal parameter that will never be assigned a value.

\[FormalW] (Mathematica Character Name)

Unicode: F816. Alias: Esc $w Esc. Letter-like form. Used to represent a formal parameter that will never be assigned a value.

\[FormalX] (Mathematica Character Name)

Unicode: F817. Alias: Esc $x Esc. Letter-like form. Used to represent a formal parameter that will never be assigned a value.

\[FormalY] (Mathematica Character Name)

Unicode: F818. Alias: Esc $y Esc. Letter-like form. Used to represent a formal parameter that will never be assigned a value.

\[FormalZ] (Mathematica Character Name)

Unicode: F819. Alias: Esc $z Esc. Letter-like form. Used to represent a formal parameter that will never be assigned a value.

\[HumpDownHump] (Mathematica Character Name)

Unicode: 224E. Infix similarity operator. x ≎ y is by default interpreted as HumpDownHump[x,y]. Used to indicate geometrical equivalence.

\[Iota] (Mathematica Character Name)

Unicode: 03B9. Aliases: Esc i Esc, Esc iota Esc. Greek letter. Not commonly used. Used in set theory to indicate an explicitly constructible set.

\[LeftArrowBar] (Mathematica Character Name)

Unicode: 21E4. Infix arrow operator. x ⇤ y is by default interpreted as LeftArrowBar[x,y]. Sometimes used to indicate a backtab. Extensible character.

\[LowerLeftArrow] (Mathematica Character Name)

Unicode: 2199. Infix arrow operator. x ↙ y is by default interpreted as LowerLeftArrow[x,y]. Extensible character; grows by default to limited size.