Scattering from hexagonal PEC cylinder of infinite length

This code calculates scattered field from a an infinite length hexagonal PEC cylinder

In this code each of the six edges is divided into smaller segment, incident field induces some current in the segment say 'I' segment at which it hits the cylinder, this induced current produces field which affects all other segments and induces current in them which is inversely proportional to the distance of interaction from 'I' segment. Actually this code calculates current induced in all other segments which is directly proportional to the scattered field.