Polygon (Built-in Mathematica Symbol)

Polygon[{pt_1, pt_2, ...}] is a graphics primitive that represents a filled polygon. Polygon[{{pt_11, pt_12, ...}, {pt_21, ...}, ...}] represents a collection of polygons.

QPolyGamma (Built-in Mathematica Symbol)

QPolyGamma[z, q] gives the q-digamma function \[Psi]_q (z).QPolyGamma[n, z, q] gives the n\[Null]^th derivative of the q-digamma function \[Psi]_q^(n)(z).

SimpleGraph (Built-in Mathematica Symbol)

SimpleGraph[g] gives the underlying simple graph from the graph g.

SimpleGraphQ (Built-in Mathematica Symbol)

SimpleGraphQ[g] yields True if the graph g is a simple graph and False otherwise.

SphericalBesselJ (Built-in Mathematica Symbol)

SphericalBesselJ[n, z] gives the spherical Bessel function of the first kind j_n (z).

SphericalBesselY (Built-in Mathematica Symbol)

SphericalBesselY[n, z] gives the spherical Bessel function of the second kind y_n (z).

SquaredEuclideanDistance (Built-in Mathematica Symbol)

SquaredEuclideanDistance[u, v] gives the squared Euclidean distance between vectors u and v.

StringJoin (Built-in Mathematica Symbol)

"s_1" <> "s_2" <> ..., StringJoin["s_1", "s_2", ...], or StringJoin[{"s_1", "s_2", ...}] yields a string consisting of a concatenation of the s_i.

TagBox (Built-in Mathematica Symbol)

TagBox[boxes, tag] is a low-level box construct that displays as boxes but maintains tag to guide the interpretation of boxes on input.

Times (Built-in Mathematica Symbol)

x*y*z, x*y*z, or x y z represents a product of terms.