At last, it studies the rule extraction based on feature matrix.

最后，研究了基于特征矩阵的规则提取方法。

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The selecting rule for guide star, the storing content of the guide star catalog, spherical matrix storing and the method for reading guide star catalog are presented.

介绍了导航星的选取规则、导航星库的存储内容及采用球矩阵存储和读取导航星库的方法；

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Each matrix of the matrix model has a simple rule to be filled in, which make it versatile, and suitable for computerization.

模型所涉及的各矩阵填写规则简单，规律性较强，适宜于采用计算机语言表达。

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It excels as an extension of the Matrix universe, giving people a chance to be more than passive bystanders in the struggle to liberate humans from the rule of the machines.

BBC: Screenshot from Enter the Matrix