EMD-denoising

Hurst数计算，用于算法交易，非常有用(Hurst index)

mathematica里面实现仿真的蒲丰投针实验(buffon experiment on mathematica)

用matlab软件实现二维的图像的处理，包括放大缩小旋转等(Realization of two-dimensional image processing using matlab software, including zoom and rotation)

KNN k s nearest neighbor algorithm(KNN k' s nearest neighbor algorithm)

说明：  这里介绍了一种基于自适应滤波的噪声抵消法，采用归一化最小均方误差算法，采集实际噪声环境下各种不同信噪比的带噪语音样本进行降噪处理，实验结果表明，处理后信号的信噪比得到了较大程度的提高，大大改善了听音效果，具有很高的可懂度，且语音自然度好，没有失真；并与谱减法进行了比较，自适应噪声抵消法的降噪幅度比谱减法有一定提高，在听音效果上，用自适应噪声抵消法处理后的语音在清晰度，自然度方面优于谱减法。(Here a novel adaptive noise cancellation method using normalized least mean square algorithm, collecting a variety of actual noise environment, the SNR of noisy speech samples for noise reduction, experimental results show that treatment After the signal to noise ratio was greater improvement in the level, greatly improved the listening results, with high intelligibility and naturalness of speech is good, no distortion and were compared with the spectral subtraction, adaptive noise cancellation law than the spectral subtraction noise reduction rate of a certain improvement in the listening results, and with the adaptive noise cancellation method in the treatment of voice clarity, naturalness is better than spectral subtraction.)

拥有gui界面，实时描述三相配电网络情况（包括电压，电路损耗），由线损，三相荷载和无功补偿额为主要影响因素(With GUI interface, real-time network description of three-phase distribution (including voltage, circuit loss), by the loss, the three-phase load and reactive power compensation as the main factors)

很有用的增广拉格朗日乘子法Matlab源码(useful laglange mul. matlab code)

informax 程序，可以分离超高斯及亚高斯源，并且自带有六个源信号(informax program, you can separate super-Gaussian and sub-Gaussian source, and comes with six source signals)

Data Encryption by Matrix Multiplication We will only use numbers 0 to 26 for the encryptive mathematics operation. Numbers from 1 to 26 are for letters from A to Z and 0 is for all non-letter characters. To minimize usage of numbers, all letters are converted to upper case. The original message is converted to number array according to the ASCII table and minus 64. We partition whole array into blocks of 8 numbers. The last block may be added several zeros. Then multiply each block by the an 8x8 matrix A which is invertible in Z27 to get cipher data. The decryption is the same process except to use its inverse matrix B. For good visual reading, we convert all non-letter characters to under score for the decryption.

MATLAB在数值分析中的应用（源程序）(MATLAB in numerical analysis applications (source))