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This file contain the programs of cap 2 of the book digital signal processing , writing by mitra 3rd edition.

Convert a polynomial coefficient vector to a string.

PID CONTROL AND CONTROLLER TUNING TECHNIQUES

数据挖掘中k均值划分聚类算法。输入对象的数据集矩阵和簇的数量，使用欧拉距离计算对象之间的相拟度(K-means partitioning clustering algorithm in data mining. Input object data sets matrix and the number of clusters, using euler distance calculation。)

利用支持向量机的回归拟合混凝土抗压强度预测，适合初学者的学习和参考。(The regression of support vector machine is used to fit the prediction of concrete compressive strength, which is suitable for beginners to learn and reference.)

this is a importance document

voice activity detection

数字通信系统中信噪比与误码率关系的Matlab模拟(digital communication system signal-to-noise ratio and bit error rate of Matlab simulation)

光子筛孔分布的例程，环数相同，用于光子筛成像时使用(Photon sieve distribution routines same ring number, is used for imaging photon sieve)

PARTICLE SWAM OPTIMIZATION