\[Sigma] (Mathematica Character Name)

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

\[Sqrt] (Mathematica Character Name)

Unicode: 221A. Alias: Esc sqrt Esc. Prefix operator with built-in evaluation rules. √ x is by default interpreted as Sqrt[x]. Ctrl+@, Ctrl+2 or ∖@ yields a complete SqrtBox ...

\[Stigma] (Mathematica Character Name)

Unicode: 03DB. Aliases: Esc sti Esc, Esc stigma Esc. Special Greek letter. Appeared between ϵ and ζ in early Greek alphabet; used for Greek numeral 6. Not the same as ...

\[SuchThat] (Mathematica Character Name)

Unicode: 220D. Alias: Esc st Esc. Infix operator. x ∍ y is by default interpreted as SuchThat[x,y]. x ∍ y ∍ z groups as x ∍ (y ∍ z). Not the same as \[ReverseElement].

\[Sum] (Mathematica Character Name)

Unicode: 2211. Alias: Esc sum Esc. Compound operator with built-in evaluation rules. ∑_(i)^i_max(f) is by default interpreted as Sum[f,{i,i_max}]. ∑_(i=i_min)^i_max(f)f is by ...

\[SZ] (Mathematica Character Name)

Unicode: 00DF. Aliases: Esc sz Esc, Esc ss Esc. Letter. Used in German. Sometimes called s sharp, ess-zed or ess-zet. Usually transliterated in English as ss. Upper-case form ...

\[THacek] (Mathematica Character Name)

Unicode: 0165. Alias: Esc tv Esc. Letter. Included in ISO Latin-2.

\[Therefore] (Mathematica Character Name)

Unicode: 2234. Alias: Esc tf Esc. Infix operator. x ∴ y is by default interpreted as Therefore[x,y]. x ∴ y ∴ z groups as x ∴ (y ∴ z).

\[Theta] (Mathematica Character Name)

Unicode: 03B8. Aliases: Esc th Esc, Esc theta Esc, Esc q Esc. Greek letter. Not the same as \[DiscreteRatio].

\[ThickSpace] (Mathematica Character Name)

Unicode: 2005. Alias: Esc ␣␣ ␣␣ Esc. Spacing character. Width: 5/18 em. Interpreted by default just like an ordinary \[RawSpace].