Widget["Tree"] represents a tree.
Sawtooth is a type of waveform.
Square is a type of waveform.
$BenchmarkSystems gives the names of systems for which the MathematicaMark8 benchmark data is known.
EasterSunday[year] gives the date of Easter Sunday in the Gregorian calendar system.
AcyclicQ[g] yields True if graph g is acyclic.
Automorphisms[g] gives the automorphism group of the graph g.
BipartiteQ[g] yields True if graph g is bipartite.
ChvatalGraph returns a smallest triangle-free, 4-regular, 4-chromatic graph.
Cofactor[m, {i, j}] calculates the (i, j)\[Null]^th cofactor of matrix m.