DiffusionPDETerm

DiffusionPDETerm[vars] represents a diffusion term ∇{x1,…,xn}·(-∇{x1,…,xn}u) with model variables vars.

DiffusionPDETerm[vars,c] represents a diffusion term ∇{x1,…,xn}·(-c∇{x1,…,xn}u) with diffusion coefficient c.

DiffusionPDETerm[vars,c,pars] uses model parameters pars.

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