num::linear::laplacian

Defined in header <linear/graph/laplacian.hpp>

template <typename Weight = real, typename Index = idx>
spmat laplacian(const graph<Weight, Index> &g);  // (1)

template <std::size_t D, typename Weight, std::integral Index>
spmat laplacian(const structured_grid_graph<D, Weight, Index> &g);  // (2)

spmat laplacian(const structures::multigraph<real, idx> &g);  // (3)

(1) Undocumented.

(2) Laplacian of an implicit Cartesian grid without materializing adjacency lists.

(3) Laplacian of a multigraph, summing parallel edge multiplicities.