undirected graph

• 无向图

undirected graph的用法和样例：

例句

1. With the motivation of the undirected graph and bipartite partition, some new estimations for singular values of a matrix were presented.
   摘要利用矩阵的无向图及二部分划，给出了新的复合型矩阵奇异值估计式，改进了已有的相应结果。