\(U(\mathbf{x},t)=\Re\{u(\mathbf{x})\mathrm{e}^{-\mathrm{i}kt}\}\)

Incident field \(u^{Inc}\):
(Incoming field)
Scattered field \(u\):
(Scattered field)
Total field \(u^{Tot}=u+u^{Inc}\):
(Total field)