\[Eta]
(Mathematica Character Name) Unicode: 03B7. Aliases: Esc et Esc, Esc eta Esc, Esc h Esc. Greek letter. Used in TraditionalForm for DedekindEta.
Unicode: F74D. Alias: Esc ee Esc. Letter-like form with built-in value. is interpreted by default as the symbol E, representing the exponential constant.
Unicode: F4A1 Alias: Esc fn Esc. Infix operator with built-in evaluation rules. x y is by default interpreted as Function[x,y]. x y z groups as x (y z). \[Function] ...
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].
\[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: F74E. Alias: Esc ii Esc. Letter-like form with built-in value. is interpreted by default as the symbol I, representing Sqrt[-1].
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: 221E. Alias: Esc inf Esc. Letter-like form with built-in value. ∞ is interpreted by default as the symbol Infinity.