HelmholtzPDEComponent

HelmholtzPDEComponent[vars,pars] yields a Helmholtz PDE term ∇2{x1,…,xn}u+k2u with model variables vars and model parameters pars.

Examples

HelmholtzPDEComponent[{u[x, y], {x, y}}, {k}]

Please visit the official Wolfram Language Reference for more details.