recognize

说明：  在matlab中实现快速简便画圆的一种方法，希望对朋友们有帮助~(Quick picture circle)

用于自学Matlab的一些小的简单的程序，里边涵盖了许多数学问题(For self-study a number of small simple Matlab program, covers a lot of math problems inside)

宽带波束形成 倍频程波束形成 恒定束宽波束形成(Broadband Beamforming Beamforming octave constant beamwidth beamforming)

一个完整Matlab程序，实现了粒子群算法与人工鱼群算法的比较，体现了两种算法各自的优缺点(A complete Matlab program to achieve a particle swarm optimization and artificial fish school algorithm, two algorithms reflects the advantages and disadvantages of each)

It describes a stage of cotton flower whether it is matured or not.

高速铁路路基沉降是一个复杂的系统过程,涉及不同时期、不同工况,选用单一的预测模型不足以反映路基整体的变形规律.Logistic模型及Verhulst模型的曲线均为S形,可以反映全过程的地基沉降与时间的关系.针对路基填筑期和降水期两个时段利用MATLAB软件编制程序计算模型参数,得到Logistic模型和灰色Verhulst模型,进而求得两者的最优加权组合模型.对比结果表明:在路基填筑期由两者的最优加权组合模型预测得到的结果与实测结果较吻合,拟合精度高于单一模型 而在降水期Verhulst模型的预测值更接近实测值,平均相对误差约为1.75％,拟合精度较高.(High-speed railway subgrade settlement process is a complex system involving different times and in different conditions, the choice of a single forecasting model does not adequately reflect the overall deformation of roadbed. Curve Logistic model and Verhulst models are S-shaped, the whole process can be reflected foundation settlement versus time. against roadbed construction period of two hours and precipitation using MATLAB software programming model parameters, the Logistic model and gray Verhulst model, and then get the optimal model of a weighted combination of the two. comparative results indicate : results and experimental results in the roadbed construction period by the weighted combination of the best of both models predicted than the anastomosis fitting accuracy than a single model precipitation predicted value of Verhulst model closer to the actual value of the average relative error approximately 1.75 fitting accuracy.)

有关PWM设计的一些参考，是用simulink搭建起来的模型(For some reference PWM design is to build up the model with simulink)

matlab codes for data allocation

matlab大学matlab实训题目1答案(matlab test 1 anwser)

naive bayesian classifier in matlab