quaternion

该功能实现了颜色均衡化，使得视觉更加的良好(the function acommplish the color balance so that make a good looking of landscape)

学习matlab的好资料，再次共享下啦。参考参考(Matlab learning good information, to share the friends again. Reference Reference)

matlab从入门到精通，十分经典，人民邮电出版社，求是科技编写(matlab from entry to master, very classic, Posts & Telecom Press, seeking science and technology writing)

QuantMSE using matlab

Transient Pipe Flow: Compute the transient velocity profile of a flow in a pipe.

MATLAB neural network 30 case studies _MATLAB Chinese Forum _2010_P286.pdf

用matlab实现Floyd和Wallshell算法，基本功能都有(Floyd and Wallshell using matlab algorithm, the basic function)

matlab中pid工具箱源代码，用于pid工具(pid toolbox in matlab sourse)

说明：  多个模式识别算法的matlab代码，包括k近邻、二叉决策树、感知器、fisher线性判别等.(Matlab code of multiple pattern recognition algorithms, including k-nearest neighbor, binary decision tree, perceptron, Fisher linear discrimination, etc.)

粒子群算法，也称粒子群优化算法（Particle Swarm Optimization），缩写为 PSO， 是近年来发展起来的一种新的进化算法(Evolutionary Algorithm - EA)。PSO 算法属于进化算法的一种，和模拟退火算法相似，它也是从随机解出发，通过迭代寻找最优解，它也是通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优。这种算法以其实现容易、精度高、收敛快等优点引起了学术界的重视，并且在解决实际问题中展示了其优越性。粒子群算法是一种并行算法。 BP（Back Propagation）神经网络是1986年由Rumelhart和McCelland为首的科学家小组提出，是一种按误差逆传播算法训练的多层前馈网络，是目前应用最广泛的神经网络模型之一。BP网络能学习和存贮大量的输入-输出模式映射关系，而无需事前揭示描述这种映射关系的数学方程。它的学习规则是使用最速下降法，通过反向传播来不断调整网络的权值和阈值，使网络的误差平方和最小。BP神经网络模型拓扑结构包括输入层（input）、隐层(hidden layer)和输出层(output layer)。(Particle swarm optimization, also known as particle swarm optimization (Particle Swarm Optimization), abbreviated as PSO, is a new evolutionary algorithm developed in recent years (Evolutionary Algorithm- EA). Kind, and simulated annealing algorithm PSO algorithm is similar evolutionary algorithms, it is also starting a random solution, through an iterative search for the optimal solution, which is also used to uate the quality through fitness solution, but it is simpler than genetic algorithm rules It has no genetic algorithm " crossover" (Crossover) and " variant" (Mutation) operation, which by following the current search to find the optimal value to the global optimum. This algorithm is its easy implementation, high accuracy, fast convergence, etc. attracted academic attention and show its superiority in solving practical problems. PSO algorithm is a parallel algorithm. BP (Back Propagation) neural network is a 1986 team of scientists headed by Rumelhart and McC)