Boundary element method taking into account external power source

A formulation for solving two-dimensional magnetic field problems making use of boundary integral equations to extend the application of T. Nakata and N. Takashi's (1982) finite-element method including the external power source has been developed. The development of the method of analysis has made it easy to calculate practical magnetic field problems using the boundary-element method. The same procedure of the boundary-element formulation may be applied to three-dimensional magnetic field problems by using this two-dimensional boundary-element method