Unix下的复数运算，实现了复数的加减、开方运算

根据已知数据的权重对数据进行拟合，若不能给出数据的权重就默认为数据权重为1.这种拟合 方法是根据最小二乘进行的。-The basis of known data on the weight of the data fitting, if the data should not give the weight for data on the default weight is 1. This method is based on least-squares fitting carried out.

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数值分析中的Doolittle选主元素分解法解方程组。-Numerical analysis of selected major elements in the Doolittle decomposition method solution of equations.

选票程序-ballot procedures

operation research

本实验功能与目的是实现K—均值聚类算法，将“Iris.txt”文件中的数据用K—均值聚类的方法分为三类。分类结果用该数据的数据编号表示。

地震勘探中的正演模拟，是层状模型的，有限差分正演，真的很不错的，用fortran编写的，哈哈哈哈哈

本代码实现如何反向传播算法 works.it 将生成关系图，它会告诉准确的预测和实际的输出结果。

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