Mathematica provides direct access to a large volume of mathematical data, specially organized and created for
Mathematica. The data is available in a wide range of forms suitable for direct integration into
Mathematica computations.
GraphData — properties of named and enumerated graphs
KnotData — properties of enumerated knots
LatticeData — properties of named lattices
PolyhedronData — geometry and properties of polyhedra
ExampleData — example and test-case data
Import,
Export — import, export mathematical data