Talk:Bi-isotropic material

Interchanged \chi and \kappa
I currently work with bi-anisotropy, and find that the actual usage of \kappa and \chi is used in the reverse here, compared to the litterature I am familiar with. Articles like uses only the \chi parameter (stated as \kappa on the Wiki page). And this excellent textbook (in Swedish, however, but see section 4.5) Get the PDF . Maybe this is due to different traditions in different fields?