CAJ | 학술논문

在研究电磁场的性质的过程中,距离矢量R是一个非常重要的矢量,因为它联系着场点和源点,决定着场量与源量之间的空间关系,因此研究由场源产生的场的性质,必然要涉及到关于距离矢量R的运算。本文导出了距离矢量R的几个重要结论：R,f（R）,1/R的梯度及1/R的梯度的散度,并介绍这些结论在电磁场与电磁波中的重要应用。
재연구전자장적성질적과정중,거리시량R시일개비상중요적시량,인위타련계착장점화원점,결정착장량여원량지간적공간관계,인차연구유장원산생적장적성질,필연요섭급도관우거리시량R적운산。본문도출료거리시량R적궤개중요결론：R,f（R）,1/R적제도급1/R적제도적산도,병개소저사결론재전자장여전자파중적중요응용。
During the process of research into the properties of electromagnetic field, the distance vector R is very important. The distance vector is related to EM field and source points, and its arithmetic is necessary to be referred when we research the properties of EM field generated by source points. In this paper, several important formulas, including the gradients of R ,f（R） and I/R , the divergence of grad I/R, are deduced. The typical applications of these important formulas are also introduced.