The field scattered by a scattering body or by an aperture in the free space (or in an unbounded homogenous medium) can be described in terms of a double integral. In this paper we show how a ...

Integrals tell you what happens when you divide the area under a curve into those infinitely tiny rectangles, ... And the integral is (a) times (t), plus that constant we add -- C.

Abstract: Several efficient methods are proposed in this paper to evaluate and accelerate the Sommerfeld integrals for stratified media Green's functions, with the emphasis on the case of half-space.