Pentagon is a regular polygon with five edges, for use with polytope functions.

Undecagon is a regular polygon with eleven edges, for use with polytope functions.

Vertices[polytope] gives a list of the vertex coordinates of polytope.

ProvablePrimeQ[n] gives True if n is provably prime, and False otherwise.

ArcMinute is a unit multiplier.

ArcSecond is a unit multiplier.

Gal is the derived CGS measure of acceleration due to gravity.

Gauss is the derived CGS unit of magnetic flux density.

Gram is the fundamental CGS unit of mass.

Lux is the derived SI unit of illumination (illuminance).