graphlow.core.MeshGeometry.cell_local_fem_rigidity_tet

MeshGeometry.cell_local_fem_rigidity_tet(cell_material_coeff: T | None = None, rank: int = 0) → T

Generate the cell-wise local FEM rigidity matrix on the tet mesh.

Parameters:

cell_material_coeff: T

Cell-wise (or global) material coefficient.

rank: int

Rank of the material coefficient. Typically, 0 for isotropic heat, 2 for anisotropic heat, and 4 for structural analysis.

Returns:

cell_local_rigidity: T

Cell-wise local rigidity matrix.