Unicode: 224F. Alias: Esc h= Esc. Infix similarity operator. x ≏ y is by default interpreted as HumpEqual[x,y]. Sometimes used to mean "approximately equal" and sometimes ...

Unicode: 03DF. Aliases: Esc ko Esc, Esc koppa Esc. Special Greek letter. Analogous to English q. Appeared between π and ρ in early Greek alphabet; used for Greek numeral 90.

Unicode: 2190. Alias: Esc <- Esc. Infix arrow operator. x ← y is by default interpreted as LeftArrow[x,y]. Sometimes used in computer science to indicate assignment: x gets ...

Unicode: F76B. Alias: Esc [ Esc. Letter-like form. Used in documenting control and command characters. key\[LeftModified]char\[RightModified] is used to indicate that char ...

Unicode: 22A3. Alias: Esc lT Esc. Infix operator. x ⊣ y is by default interpreted as LeftTee[x,y]. x ⊣ y ⊣ z groups as (x ⊣ y) ⊣ z. Used in mathematics to indicate the lack ...

Unicode: 22B2. Infix ordering operator. x ⊲ y is by default interpreted as LeftTriangle[x,y]. Used in pure mathematics to mean 'normal subgroup of'.

Unicode: F7D9. Infix operator with built-in evaluation rules. x  y is by default interpreted as Equal[x,y] or x==y. \[LongEqual] is drawn longer than \[RawEqual]. Used as an ...

Unicode: 00B5. Alias: Esc mi Esc. Letter-like form. Used as a prefix in units to denote 10^-6. Not the same as \[Mu].

Unicode: 266E. Letter-like form. Used to denote musical notes. Sometimes used in mathematical notation, often as an inverse of numbering operations represented by \[Sharp].

Unicode: F383. Alias: Esc -␣␣ ␣ Esc. Negative spacing character. Used to bring characters on either side closer together. Width: -4/18 em. Interpreted by default just like an ...