\[Eta]
(Mathematica Character Name) Unicode: 03B7. Aliases: Esc et Esc, Esc eta Esc, Esc h Esc. Greek letter. Used in TraditionalForm for DedekindEta.
Unicode: 25A0. Alias: Esc fsq Esc. Letter-like form. Used as a dingbat. Not the same as \[SelectionPlaceholder].
Unicode: 03B3. Aliases: Esc g Esc, Esc gamma Esc. Greek letter. Used in TraditionalForm for EulerGamma and StieltjesGamma.
Unicode: 2265. Alias: Esc >= Esc. Infix operator with built-in evaluation rules. x ≥ y is by default interpreted as GreaterEqual[x,y].
Unicode: 02C7. Alias: Esc hck Esc. Letter-like form. Used primarily in an overscript position. Used as a diacritical mark in Eastern European languages. Sometimes used in ...
\[HBar]
(Mathematica Character Name) Unicode: 210F. Alias: Esc hb Esc. Letter-like form. Used in physics to denote Planck's constant divided by 2π; sometimes called Dirac's constant.
Unicode: F3CE. Alias: Esc hc Esc. Superscript postfix operator with built-in evaluation rules. m^ is by default interpreted as ConjugateTranspose[m]. Not the same as ...
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: F523. Alias: Esc => Esc. Infix operator with built-in evaluation rules. x y is by default interpreted as Implies[x,y]. x y z groups as x (y z). Not the ...
Unicode: 22C2. Alias: Esc inter Esc. Infix operator with built-in evaluation rules. x ⋂ y is by default interpreted as Intersection[x,y]. The character ⋂ is sometimes called ...