DihedralGroup[n] represents the dihedral group of order 2 n.

FindEdgeCover[g] finds an edge cover of the graph g with a minimum number of edges.

GraphRadius[g] gives the minimum eccentricity of the vertices in the graph g.

IndependentVertexSetQ[g, vlist] yields True if the vertex list vlist is an independent vertex set in the graph g and False otherwise.

MedianDeviation[list] gives the median absolute deviation from the median of the elements in list.

O[x]^n represents a term of order x^n. O[x]^n is generated to represent omitted higher-order terms in power series. O[x, x_0]^n represents a term of order (x - x_0) n.

Opener[x] represents an opener with setting x, displayed as OpenerBox[True] when x is True and OpenerBox[False] when x is False. Opener[Dynamic[x]] takes the setting to be ...

ProgressIndicator[x] represents a progress indicator with setting x in the range 0 to 1. ProgressIndicator[Dynamic[x]] takes the setting to be the dynamically updated current ...

On most computer systems, you can execute external programs or commands from within Mathematica. Often you will want to take expressions you have generated in Mathematica, ...