积分和
... 积分号 sign of integration 积分和 integral sum 积分区间 integral interval ...
文中证明了梯子的排斥下整和数为1。
The error of integration and integral sum are often considered in approximation and(calculation).在近似计算中常要考虑积分与积分和的误差。
We also point out that the integral sum labelling of the double star is unique in the isomorphic sense.我们还指出在同构的意义下双星的整和标号是唯一的。