The urbanization levels of districts are evaluated by the method of nonlinear mapping analysis.

采用非线性映射分析方法对区域城市化水平进行了聚类分析。

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By using ANN and its powerful nonlinear mapping ability and combining production of FEM dynamic analysis, a new way to predicting terrane crack depth of complex fire hole is offered.

以神经网络为基本工具，利用其强大的非线性映射能力，并结合有限元法动力分析成果，为预测在复合射孔条件下岩层裂缝扩展深度提供了一条新的途径。

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Using homotopy methods, this paper gives an analysis on the existence of zeros of the decomposable mapping, and finds its application to a class of nonlinear eigenvalue problems.

用同伦方法分析了可分解映射的零点存在性，并获得它对一类非线性特征值问题的应用。

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