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二阶椭圆偏微分方程的差分算法，适用于求解矩形区域，任意边界条件。(elliptic partial differential equation algorithm applied to solving rectangular region, arbitrary boundary conditions.)

DateConvert：简单而快速的日期转换 DateConvert转换DATESTR（0）格式的日期向量或序列号和日期向后。 Matlab的DATENUM，DATEVEC和DATESTR接受各种不同意见，但结果他们是缓慢的。如果输入格式正是众所周知，转换可以更快： DATENUM（ 17 - 10 - 2009 11时08分23秒 ）：2.97秒 DateConvert（ 17 - 10 - 2009 11时08分23秒 ， 号码 ）：0.039秒 =>“1.3％（1000环，1.5GHz的奔腾- M的，利用Matlab 7.7） DateConvert不*不*验证作为Matlab的日期函数输入日期： DATEVEC（ 32 - 2 - 2008 25:62:63 ）的答复[2008 3 4 2 2 7] DateConvert（ 32 - 2 - 2008 25:61:67 ， 载体 ）的答复[2008 2 32 25 61 67]！ 因此DateConvert几乎微不足道，但对速度进行了优化。我需要时间排序200 000邮票，并从217个减少到11秒的时间。 请运行单元测试TestDateVec检查的有效性和速度。 测试：利用Matlab 6.5，7.7，7.8，winxp的，32位。 纯Matlab代码，所以兼容性的MacOS，Linux操作系统，64位预期。 英语月份名称是必要的。(DateConvert: Simple but fast date conversion DateConvert converts the DATESTR(0) format to a date vector or serial date number and backwards. Matlab s DATENUM, DATEVEC and DATESTR accept a variety of inputs, but in consequence they are slow. If the input format is exactly known, the conversion can be much faster: DATENUM( 17-Oct-2009 11:08:23 ): 2.97 sec DateConvert( 17-Oct-2009 11:08:23 , number ): 0.039 sec => 1.3 (1000 loops, 1.5GHz Pentium-M, Matlab 7.7) DateConvert does*not* validate the input date as Matlab s date functions: DATEVEC( 32-Feb-2008 25:62:63 ) replies [2008 3 4 2 2 7], DateConvert( 32-Feb-2008 25:61:67 , vector ) replies [2008 2 32 25 61 67] ! So DateConvert is nearly trivial, but optimized for speed. I needed it for sorting 200 000 time stamps and reduced the time from 217 to 11 sec. Please run the unit-test TestDateVec to check validity and speed. Tested: Matlab 6.5, 7.7, 7.8, WinXP, 32bit. Pure Matlab code, so compat)

本人收集的几十篇关于小波去噪的论文，对于各个领域研究去噪的朋友有很大帮助(I collected dozens of papers on wavelet denoising, for research in various fields Denoising friends are very helpful)

温度控制的各种PID算法 Z-N Smith预估器 m和mdl文件(Temperature control pid Z-N Smith predictor)

MATLAB自已编的二维DLA，基于ORL人脸数据库，效果不错。(MATLAB own series of two-dimensional DLA, based on the ORL face database, good results.)

slm降低ofdm峰均比的程序，在matlab中实现(slm ofdm PAPR reduction procedure is implemented in matlab)

计算滑动轴承滑动效率和受的摩擦力，并绘制出曲线(Calculation of efficiency and by the sliding bearing sliding friction, and draw out the curves)

boost switching converter allow the transformation of DC energy to choped energy

混沌与分岔，验证混沌的初值敏感性，logisitic的周期和分岔(Chaos and bifurcation, the initial value to verify the sensitivity of chaos, logisitic the cycle and bifurcation)

设计一维纳滤波器。产生三组观测数据，并估计它们的AR模型参数，分析信号长度和模型阶次对实验结果的影响(Wiener filter design. Have three sets of observational data, and estimated AR model parameters of their analysis of the signal length and model order on the impact of experimental results)