Represents a diffusion PDE term div(c*grad(u))
DiffusionPDETerm[vars]
DiffusionPDETerm[vars, c]
DiffusionPDETerm[vars, c, pars]
DiffusionPDETerm[{u[x], {x}}, 1]
→ 0DiffusionPDETerm[{u[x], {x}}, {{κ[x]}}]
→ 0NDEigenvalues[DiffusionPDETerm[{u[x], {x}}], u, {x}∈Line[{{0}, {1}}], 3]
→ {0., 9.869604401089358, 39.47841760435743}