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单位圆的内插实现，里面有4种内插算法：拉格朗日插值、牛顿插值、分段线性插值、分段样条插值、以及插值误差范数估计等等(Interpolation to achieve the unit circle, which has four kinds of interpolation algorithms: Lagrange interpolation, piecewise-linear interpolation, sub-spline interpolation, as well as Norm interpolation error estimates, etc.)

说明：  实现了一个音频水印，包括嵌入，提取过程等。包括了原文件。(This source code realized an audio watermarking.It includes the embeding and extracting procedure.Also the original file is in it.)

说明：  matlab数字滤波器设计,计算出参数便于dsp实现bp-ac01(matlab digital filter design, easy to calculate the parameters dsp achieve bp-ac01)

说明：  matlab振动试验数据分析，信号获取：测量获取设备的信号（振动、转速、过程参等）。信号分析：从信号中提取反映设备运行状态和故障的特征值。故障诊断：根据信号特征信息，对故障进行诊断（专家诊断、智能自动诊断）和预测(Matlab vibration test data analysis, signal acquisition: Measurement and acquisition of equipment signals (vibration, speed, process parameters, etc.). Signal analysis: extract the characteristic value of equipment running state and fault from the signal. Fault diagnosis: fault diagnosis (expert diagnosis, intelligent automatic diagnosis) and prediction according to signal characteristic information)

matlab入门到精通，书的各章例程都有，可配套书一起学习(matlab entry to the master, the book has chapters routines can be written with the learning support )

this is a matlab model of single machine infinite bus with out any controller. we can add any type of controller for verification of stability of the system

使用Matlab仿真QAM和M=4的PSK(Matlab simulation using QAM and M = 4 of the PSK)

Patterns of Enterprise application architecture

make a transversal channel take a three tap chanel [1,1/4 1/2] and data generate by BPSK(1 or -1)(make a transversal channel take a three tap chanel [1,1/4 1/2] and data generate by BPSK(1 or-1))

说明：  根据所给的电力系统，编制短路电流计算程序，通过计算机进行调试，最后完成一个切实可行的电力系统计算应用程序。通过自己设计电力系统计算程序使同学们对电力系统分析有进一步理解，同时加强计算机实际应用能力的训练(According to the power system, the preparation of short-circuit current calculation procedures, through the computer debugging, and finally complete a practical calculation of power system applications. Power system through their computer program designed to make students have a better understanding of the power system analysis, while strengthening the training of the practical application of computer)