矩量法求磁场积分方程。选取RWG函数进行共边判断RWG单元-Moment Method of magnetic field integral equation. RWG function selected a total judgment RWG edge modules

运用四阶龙格-库塔法解一阶常微分方程(定步长)-four bands using the Runge - Kutta method of first-order differential equation (fixed step)