In mathematics, a Hamiltonian path in a graph is a path that visits each vertex precisely once. A Hamiltonian cycle is a cycle which visits each vertex once and only once.
This type of path is named after William Rowan Hamilton who invented a puzzle, now known as Hamilton's puzzle, about the construction of such paths.
... much debated issue. Prime Minister Pierre Trudeau very much wanted it, but many of the provincial leaders did not. Trudeau thus was forced to include the notwithstanding ...