By using their ideas, this paper advanced an elementarytransform method after having improved their two algorithms.
借鉴他们的思想，再对两种算法进行改进，提出一种“初等变换法。”
2
In this pater, using parametric transform method direct derive soliton wave equation of loss optical fibers and elementary soliton solution.
本文用参量变换法直接导出了有耗光纤的孤波方程及其基态孤子解。
3
One helpful way to determine the isomorphism of graphs is to use elementary operations on a graph adjacency matrix so as to transform one matrix into another.