INVCPP5

PCA人脸识别 This package implements basic Principal Component Analysis in Matlab and tests is with grayscale portion of the FERET database. Images are not preprocessed and it is up to the user to preprocess the images as wanted, not changing the filenames()

研究羊群效应的例程，首先要对所有的价格序列做预处理，需要的请自行下载(study herding the routines, we must first of all do pretreatment sequence prices, the need to please download)

本文建立了独立悬架汽车整车七自由度动力学模型，推导了振动微分方程，运用数值仿真的手段研究了汽车悬架阻尼系数、刚度等设计参数对汽车振动特性的影响规律。结果表明，在共振区域附近，相对较大的刚度，会导致汽车的舒适性下降，但在共振区以外的高频区，刚度对汽车振动幅值的影响并不大；后桥悬挂阻尼对汽车振动幅值的影响较前桥强烈，适当增大后桥悬挂的阻尼有利于振动幅值的降低(This paper established an independent suspension vehicle dynamic model of seven degree of freedom, the vibration differential equation is derived, using the numerical simulation method of vehicle suspension damping coefficient, influence of design parameters on vehicle vibration characteristics of stiffness. The results show that in the resonance region, a relatively large stiffness, will lead to the comfort of the car down, but in the resonance region outside the high frequency region, the effect of stiffness of the vehicle vibration amplitude is small; the effect of damping on automobile suspension vibration amplitude is strongly increasing the rear axle axle, suspension damping to reduce the vibration amplitude)

create a Christmas tree with string * , caling the function tree(x), x is a prime number!

快速多级子算法，类似与FFT的加速！ 快速多级子算法，类似与FFT的加速！多层快速多极子算法中的关键技术代码,希望对你们有用,不是很完整(fmm hopefast multipole method！ Very fast and complex！ fast multipole method！ Very fast and complex！)

实现粒子群算法的简单MATLAB仿真编程可以参考参考下(Simple particle swarm algorithm MATLAB simulation programming can refer to refer to the following)

IEC协会推荐的电压波动和闪变的测量计算方法，并含相关的IEC标准和国标（这些标准很难找到免费的）(IEC Association recommended voltage fluctuation and flicker measurement and calculation methods, and with the relevant IEC standard and GB (hard to find these standards for free))

Tests for KeyManagerFactory</code> class constructors and methods.

一维奇异摄动问题（对流扩散问题）的有限元程序源代码。(One-dimensional singular perturbation problem of the finite element program source code.)

DQ Transformations - IQ