zhixin

凸包 凸包问题的实现 有无数点，求能包含这些点的图形的最小面积(Convex hull Convex hull problem of realization there are numerous points, seek to include these points, the graphics, the minimum size)

about the signal processing,especially the fourier transform

这是《wcdma无线网络规划与优化》书上对应的源代码的第二部分，共有10个matlab源程序代码。("wcdma wireless network planning and optimization" book on the source code corresponding to the second part, A total of 10 Matlab source code.)

matlab 画viviani曲线+绘制分子结构+最小二乘拟合+求信号包络线+滤波器设计（一次为大家提供5个matlab完整程序，能调试准确的结果仿真图）(matlab draw viviani curve++ least-squares fit to draw the molecular structure of++ request signal envelope filter design)

开关磁阻电动机仿真，模糊pi控制，转矩电流双闭环(Switched reluctance motor simulation, fuzzy pi control, torque current double closed loop)

基于MATLAB的BP神经网络人脸朝向识别(Towards the identification of BP neural network based on MATLAB Face)

说明：  Matlab中有关HMM的函数集。给出了详细的源代码，可以用于hMM在各个领域的研究和开发(Matlab the HMM Function Set. Given the detailed source code, hMM can be used in various fields of research and development)

说明：   本书内容深入浅出、图文并茂、理论与实训紧密结合，各章之间既相互联系又相对独立，读者可根据需要选择阅读。本书每章内容都包括两部分，一部分为理论讲解，以丰富多样的实例作为支撑；另一部分为与理论部分配套的MATLAB仿真实训，本部分与理论部分前后呼应，同时密切结合生产实践。 (The Guide book illustrations, theory and practical training closely, both among the various chapters of interconnected and relatively independent, readers may be selected to read. Content of each chapter the book consists of two parts, the theoretical explanation, to a variety of examples as support the other part is matching with the theoretical part of the MATLAB simulation training, this section with the theoretical part of the previous ones, while keeping a close with the production practice.)

井筒参数的计算，盐穴储气库中的注采井的井筒的相关参数计算(Wellbore parameter calculation, salt cavern gas storage in the wellbore injection wells calculate the relevant parameters)

进行barrier option 计算的程序包(Be calculated barrier option package)