A novel topological index called Y-index was developed based simultaneously on the bond distance and bond adjacentmatrices for a molecular.
基于分子的键距矩阵和键联矩阵提出一种新的分子拓扑指数Y。
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Finally, the methods to find all instant center velocities and the shortest path leading to any instant center velocity of a mechanism using square adjacentmatrices are explained.