\[Mu] (Mathematica Character Name)

Unicode: 03BC. Aliases: Esc m Esc, Esc mu Esc. Greek letter. Used in TraditionalForm for MoebiusMu. Not the same as \[Micro].

\[NotEqual] (Mathematica Character Name)

Unicode: 2260. Alias: Esc != Esc. Infix operator with built-in evaluation rules. x ≠ y is by default interpreted as Unequal[x,y].

\[Omega] (Mathematica Character Name)

Unicode: 03C9. Aliases: Esc o Esc, Esc omega Esc, Esc w Esc. Greek letter.

\[Phi] (Mathematica Character Name)

Unicode: 03D5. Aliases: Esc ph Esc, Esc phi Esc, Esc f Esc. Greek letter. Used in TraditionalForm for EulerPhi and GoldenRatio.

\[Pi] (Mathematica Character Name)

Unicode: 03C0. Aliases: Esc p Esc, Esc pi Esc. Greek letter with built-in value. Interpreted by default as the symbol Pi.

\[Sigma] (Mathematica Character Name)

Unicode: 03C3. Aliases: Esc s Esc, Esc sigma Esc. Greek letter. Used in TraditionalForm for DivisorSigma and WeierstrassSigma.

\[Transpose] (Mathematica Character Name)

Unicode: F3C7. Alias: Esc tr Esc. Superscript postfix operator with built-in evaluation rules. m^ is by default interpreted as Transpose[m]. Not the same as keyboard T.

\[Zeta] (Mathematica Character Name)

Unicode: 03B6. Aliases: Esc z Esc, Esc zeta Esc. Greek letter. Used in TraditionalForm for Zeta and WeierstrassZeta.

ZTransform (Built-in Mathematica Symbol)

ZTransform[expr, n, z] gives the Z transform of expr. ZTransform[expr, {n_1, n_2, ...}, {z_1, z_2, ...}] gives the multidimensional Z transform of expr.

BesselI (Built-in Mathematica Symbol)

BesselI[n, z] gives the modified Bessel function of the first kind I_n (z).