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说明：  本书适合于初学OFDM的人，英文原著，易于进行matlab编码学习(This book is suitable for beginners who OFDM, the English original, easy to learn matlab code)

Matlab圆弧插补，只要给定起点与终点，半径，设点圆心方向以及顺逆时针方向即可实现插补(Matlab circular interpolation, given the starting point and end point, radius, set the direction of the point of the center as well as Shun counterclockwise to achieve interpolation)

说明：  To support wireless communication : MIMO

小弟初来乍到，供上B样条程序一件，希望各位前辈，多多指教。谢谢(Brother had just arrived for a program on the B-spline, I hope seniors exhibitions. Thank you)

用于对简单电力系统网络的潮流计算，只需输入线路元件参数，节点电压初值，PQ,PV节点的初值，即可输出各节点电压，平衡节点的功率，线路的功率。(for easy power system)

实现图像的降维处理,可以缩短大量的计算时间。(Dimensionality reduction of image processing, a lot of computation time can be shortened.)

STATE FEEDBACK CONTROLLER USING POLE PLACEMENT TECHNIQUE

matlab多因子选股模型，计算每只股票的得分，根据股票的得分划分为n个区间(matlab multi-factor stock selection model to calculate the score for each stock, based on the stock s score is divided into n intervals)

变结构控制仿真实例源代码，《滑模变结构控制仿真研究》随书光盘(Variable Structure Control simulation source code, " Sliding Mode Variable Structure Control Based on" CD with the book)

第一步是计算输人信号单边功率谱密度（ESD）。使用快 ％速傅里叶（FFr）算法将信号从时域转换到频域。因为FFr算法的输出是离散谱，而这 ％里我们需要的是连续谱，因此需要引人不同的比例因子来实现从离散谱到连续谱的转换。 ％在第二步中，我们利用迭代算法计算出相对于特定阂值的ESD的最高和最低频率，从而 ％估算出被检测信号所占用的带宽。这种算法同时适用于基带信号和已调制信号。最后， ％在第三步中，我们给出了输出图形的原代码。(The first step is calculating the input signal unilateral power spectral density (ESD). The use of fast Fourier speed (FFr) algorithm for the signal conversion from time domain to frequency domain. FFR algorithm because the output is a discrete spectrum, which we need is a continuous spectrum, so the need for food of different scale factor to achieve from the discrete spectrum to continuous spectrum conversion. In the second step, we use iterative algorithm to calculate a specific threshold in relation to the ESD of the highest and lowest frequency, thus estimated to be occupied by the signal detection bandwidth. This algorithm applies to both baseband signal and modulation signals. Finally, in the third step, we give the graphical output of the original code.)