二重积分计算过程中的几个重要原则

Several Important Principles in Double Integral Calculation Process

选择坐标系、确定积分顺序、明确积分限是计算二重积分的三个重要环节,本文给出了处理这三个环节的原则。

There are three important aspects in Double Integral calculation： selecting a coordinate system, determining the order of the integration, and defining the limits of integration. The paper presents the principles of handling these three aspects.