IntroductionFor a practical clectromagnetic boundary value problem(BVP),there are three impor-tant steps in theoretical research:**Formulation of the mathematical models,*Choice and operation of solving method,*Mathematical skill process,where the second step always makes one difficult,since so many miscellancous methodsappear in various publications,they were proposed and developed by different persons ofdifferent affiliations in different ages,and under different backgrounds of professional ap-plication.
展开▼
