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灰色预测程序，预计长江污水排放量，数学建模有用(Population logistic curve modeling, population forecasting model, mathematical modeling is useful)

基于matlab，针对灰度图像中圆形区域进行检测，得到所需要的圆形区域(Based on matlab, a circular area for the gray image to detect a circular area to get the required)

灰色系统理论是研究解决灰色系统分析、建模、 预测、决策和控制的理论.灰色预测是对灰色系统 所做的预测.目前常用的一些预测方法（如回归分 析等），需要较大的样本.若样本较小，常造成较 大误差，使预测目标失效.灰色预测模型所需建模 信息少，运算方便，建模精度高，在各种预测领 域都有着广泛的应用，是处理小样本预测问题的 有效工具(Grey system theory is the research and solution of grey system analysis, modeling, The theory of prediction, decision - making and control At present, some commonly used prediction methods (such as regression score) If the sample size is small, it often results in a comparison Large error, so that the prediction of the target failure Less information, convenient operation, high modeling accuracy, in a variety of prediction collar Fields are widely used to deal with small sample prediction problems Effective tool)

说明：  LDPC 编码解码 编码器 高效传输 误比特率性能(ldpc decoder coder ber)

it is an m file for seismic analysis

约170勘探地震资料和测井资料的分析和显示功能（加上他们所谓的支持功能）的设置。这些功能读取和写入标准的SEG - Y格式的地震数据，读取和写入测井在LAS格式2.0（也读3.0 LAS格式），并执行许多通常对这些数据类型进行的操作。他们使用标准化的结构来表示地震数据和测井数据，从而使函数调用的简单串联。(A set of about 170 functions (plus support functions called by them) for analysis and display of exploration-seismic data and well logs. These functions read and write seismic data in standard SEG-Y format, read and write well logs in LAS-format 2.0 (also read LAS-format 3.0), and perform many of the manipulations usually performed on these data types. They use standardized structures to represent seismic data and well data and thus allow simple concatenation of function calls.)

it is a working matlab code for analysis of BER of 16-QAM

说明：  批处理画图，数据文件较多时，可以使用此程序进行批处理画图，获得直观的分析结果。(Batch drawing, large data files, you can use this procedure to batch drawing, to obtain an intuitive analysis.)

有限元分析作业源码, piecewise单元,积分 高斯近似算法两种，并计算最小势能(Finite Element Analysis Operating source, piecewise unit, integral Gaussian approximation algorithm for two, and calculation of minimum potential energy)

matlab code for inpaint_nans