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说明：  有限差分法，解决偏微分方程的其中的一种解法(Finite difference method to solve partial differential equations in which a solution)

matlab语言实现计算全息，修正离轴灰阶显示(the matlab language calculation holographic corrected off-axis grayscale display)

设计低通滤波器对信号进行滤波，对比分析滤波前后信号的频谱；(Design of low pass filter for signal filtering, comparative analysis before and after filtering the signal spectrum )

对数据进行傅立叶分析，从时域转换到频域，观察信号的频谱结构，从分析信号的特点(Fourier analysis of the data, the time domain to the frequency domain, spectral structures of the observed signal, the signal characteristics the analysis)

Convert single precision IEEE hexadecimal string to number. By Matthias Nö ll.

计算光机耦合仿真中的光学镜面的变形情况，分离刚体位移，采用泽尼克多项式耦合。并有使用例子。(The deformation of the optical mirror in the opto mechanical coupling simulation is calculated. The displacement of rigid body is separated and the Zernike polynomials are coupled. And use examples.)

finding the image core by matlab

局部特征提取 局部特征提取 局部特征提取 局部特征提取 局部特征提取(Local feature extraction of local feature extraction of local feature extraction of local feature extraction of local feature extraction)

一个非常出名的信息隐藏程序JPhide，简单实用，学习信息隐藏的同学可以下来用用(A very well-known information hiding procedure JPhide, simple and practical, the students can learn information hiding down by using)

实现在通信系统中眼图的算法，方便观察眼图，以判断其码间串扰(Eye pattern)