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前段时间在北大OJ平台上做的几个题目，主要用到几个知识点...(OJ platform some time ago at the university to do the subject ...)

内点罚函数法，求解最优化问题规划，适用于mantlb程序(Interior point penalty function method for solving optimization problems planning procedures applicable to mantlb)

FFT变换,获得采样数据基本信息，时域图，频域图,FFT transform, sampling data basic information, time domain, frequency chart(FFT transform, sampling data basic information, time domain, frequency chart)

This demonstration shows that reordering the rows and columns of a sparse matrix S can affect the time and storage required for a matrix operation such as factoring S into its Cholesky decomposition

RS粗糙集利用，用于特征属性的约减，用matlab实现的。(RS rough set utilized for feature attributes about subtraction, using matlab to achieve.)

MATLAB与控制系统仿真实践 源代码，适合初学者使用和借鉴(MATLAB and Control System Simulation practice source code, suitable for beginners to use and learn)

描述TV HDMI 输入源的信号侦测及Parser过程。(Description HDMI signal input source detection process.)

this package include moving object detection and hough transform to recognise parallel line in an image. a sample image included in package for test.

利用三比值法实现充油电气设备的故障诊断，对气体的相对含量进行分析，得出对故障状态较可靠的诊断(The use of three-ratio method to achieve oil-filled electrical equipment fault diagnosis, the relative content of the gas to be analyzed, the state obtained a more reliable fault diagnosis)

realtime edge density estimation - road detection