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一维奇异摄动问题（对流扩散问题）的有限元程序源代码。(One-dimensional singular perturbation problem of the finite element program source code.)

3元简单函数优化的遗传算法程序,利用遗传算法求三元函数的最优值，包括主程序、初始化、交叉、变异、选择等子程序，方便自己修改，并且包含图像分析。(A simple function of the genetic algorithm optimization procedures, the optimal value of ternary functions using genetic algorithms, including the subroutine of the main program, initialization, crossover and mutation, selection, convenient modify, and includes image analysis.)

该程序是在flac下运行的，没找到flac，所以用matlab表示了，供岩土力学研究方向学习(The program is run under flac, did not find flac, so use matlab shows for rock mechanics research study)

klt algorithm in matlab : sorry I don t know how to acivate. sorry for in conveinience

matlab经典绘图案例。包括三维曲面z=x^2+y^2的动画、正弦曲线的动画、切片图、向量图、三维彗星图、三角形网格图、三角形表面图、球面、等值线图、三维瀑布图、三维火柴杆图、三维散点图、柱形图、三维条形图、三维饼图、带形图、曲线图、高斯分布函数的曲面图、高斯分布函数的网格图、5阶高斯分布矩阵、梯度场矢量图、罗盘图、玫瑰花图、羽列图、数据向量的单轴对数坐标图、矩阵的条形图 矩阵的面积图、二维饼图、散点图、误差图、火柴杆图和碗状曲面图等等。 (Drawing matlab classic case. Including three-dimensional surface z = x ^ 2+ y ^ 2 animation, animated sine curve, slices, vector graphics, three-dimensional map comet, triangular grid map, triangular surface plots, spherical, contour, 3D waterfall, three-dimensional grid graph matchstick figure, three-dimensional scatter plot, bar chart, the three-dimensional bar charts, three-dimensional pie charts, strip charts, graphs, surface, Gaussian distribution function, the Gaussian distribution function, fifth-order Gaussian distribution matrix gradient vector field, compass, rose diagram, feather column chart, the data vector uniaxial logarithmic graph, bar graph matrix Area chart matrix, two-dimensional pie charts, scatter plots, error plots, matchstick figure and bowl surface map and so on.)

一个二维的fdtd程序，入射波为TE波，较完整，带有pml边界条件。感兴趣的可以下载看看。(A two-dimensional fdtd procedures for the TE incident wave, more complete, with pml boundary conditions. Interested can download to see.)

Manchester encoder for matlab

一种由运放构成的恒流源电路，文章中详细介绍了运放的构成及计算(analysis of voltage controlled constant dc current source on OP)

说明：  采用线性预测的方法来实现语音信号的共振峰估计。(Speech formant estimation by LPC Method)

使用Matlab语言完成《数值计算方法》中的Romberg（龙贝格）积分公式，程序可以根据用户输入的积分上下限、误差容限及表达式实现Romberg积分。(Using Matlab language to complete " numerical methods" in the Romberg (Romberg) integral formula, the program based on user input limits of integration, error tolerance and expression implementations Romberg integration.)