给定由n 个整数(可能为负整数)组成的序列1 a ， 2 a ，…， n a ，以及一个正整数m，要 求确定序列1 a ， 2 a ，…， n a 的m 个不相交子段，使这m 个子段的总和达到最大。-given by n integers (with the possible negative integers) consisting of a sequence of 1, a 2, ..., n a, and a positive integer m, a request to deter

三相电路中正序、负序、零序计算方法,以及根据正序、负序、零序电量来反相计算三相电路。-CKS three-phase circuit, negative and zero sequence calculation method, and according to positive, negative and zero sequence power to calculate a three-phase inverter circuit.

华北电力大学科技学院电力系统故障分析课 程设计。计算5节点电路图中各节点正负零序电压，以及ABC三相相电压，还有9条支路的正负零序电流，以及ABC三相相电流。-Course design of power system fault analysis in College of science and technology of North China Electric Power University. Calculate the positive and negative zero seque