\[SpanFromBoth] (Mathematica Character Name)

Unicode: F3BC. Alias: Esc sfb Esc.

\[SpanFromLeft] (Mathematica Character Name)

Unicode: F3BA. Alias: Esc sfl Esc.

\[SphericalAngle] (Mathematica Character Name)

Unicode: 2222. Letter-like form. Used in geometry to indicate a spherical angle, as in the symbol ∢ ABC.

\[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 ...

\[SquareIntersection] (Mathematica Character Name)

Unicode: 2293. Infix operator. x ⊓ y is by default interpreted as SquareIntersection[x,y].

\[Square] (Mathematica Character Name)

Unicode: F520. Alias: Esc sq Esc. Prefix operator.  x is by default interpreted as Square[x]. Used in mathematical physics to denote the d'Alembertian operator. Sometimes ...

\[SquareSubsetEqual] (Mathematica Character Name)

Unicode: 2291. Infix set relation operator. x ⊑ y is by default interpreted as SquareSubsetEqual[x,y].

\[SquareSubset] (Mathematica Character Name)

Unicode: 228F. Infix set relation operator. x ⊏ y is by default interpreted as SquareSubset[x,y]. Used in computer science to indicate that x is a substring occurring at the ...

\[SquareSupersetEqual] (Mathematica Character Name)

Unicode: 2292. Infix set relation operator. x ⊒ y is by default interpreted as SquareSupersetEqual[x,y].

\[SquareSuperset] (Mathematica Character Name)

Unicode: 2290. Infix set relation operator. x ⊐ y is by default interpreted as SquareSuperset[x,y]. Used in computer science to indicate that x is a substring occurring at ...