  In this tutorial paper, we formulate a two-dimensional integral-equation
based method of moments approach for numerically computing the electromagnetic
fields scattered from an azimuthally-rough dielectric cylinder or an
axially-rough perfectly conducting cylinder. The electric field integral
equation is discretized in both the cases to yield a system of linear
equations, and a detailed evaluation of the matrix elements involved in this
system of equations is presented. Numerical computation of important quantities
such as the scattering cross-section or the scattered electric fields is also
discussed. The primary purpose of this numerical scheme is to validate
perturbative solutions that arise in the context of rough cylinder scattering
problems.
