DBSCAN算法java实现

计算机模拟中的数值算法，对于牛顿运动方程-Summary on Some Numerical Methods for Newton’s Equation of Motion

逐次超松驰迭代法(Successive Over Relaxation Me thod,简称SOR方法)是高斯―塞德尔方法的一种加速方法，是解大型稀疏矩阵方程组的有效方法之一，它具有计算公式简单，程序设计容易,占用计算机内存较少等优点,但需要较好的加速因子(即最佳松驰因子).下面我们首先说说松驰一词的含意,再利用它来解释雅可比迭代法与高斯―塞德尔迭代法,最后给出逐次超松驰迭代法的推算公式和收敛性条件.-Successive over relaxation iteration method (Successive Over Relaxation Me thod, called SOR method) is the Gauss- Seidel method for an accelerated method is solution of large sparse matrix equations, one effective method, it has a simple formula, programming easy, take up less computer memory, etc., but the need for better acceleration factor (that is, the best relaxation factor). Let us first talk about the meaning of the term relaxation, and then use it to explain the Jacobi s iterative method and the Gauss- Seidel iterative method, and finally gives successive over relaxation iterative method of projection formula and the convergence condition.

本程序由kyungsang基姆制作。如果你有问题或问题，发送电子邮件到me.kssigari@gmail.complease试试这些测试步骤1。模拟器是用于测量投影。2。demo2是解析重建众所周知过滤backprojection3。Demo3 is the iterative reconstruction using the maximum likelihood expectation maximization (MLEM) method.nx: number of image pixels of x-directionny: number of image pixels of y-directionnz: number of image pixels of z-directionsx: real size (length) of x-axis of the image -> resolution of a pixel = sx/nxsx: real size (length) of y-axis of the image -> resolution of a pixel = sy/nysx: real size (length) of z-axis of the image -> resolution of a pixel = sz/nznu: number of detector pixels of x-direction (u)nv: number of detector pixels of z-direction (axial) (v)su: size of real (length) of detector u-direction -> resolution of a pixel = su/nusv: size of real (length) of detector v-direction -> resolution of a pixel = sv/nvDSD: distance between source to detectorDSO: distance between source to iso-center (image center).dir: rota

用C编的龙贝格算法函数，程序简单明了，可直接使用，也可较快地修改应用于MATLAB中。-Rhomberg compiled with the C algorithm is a function, the program simple and clear, can be used directly, but also quickly modify the application in MATLAB.

乌拉比创立的微波电磁散射模型，主要用于电磁波在植被覆盖区域的计算，用于高大植被覆盖区，将植被分成树冠，树干和地面三个部分，分别计算电磁散射，是目前最经典精度最高的电磁散射模型。

算例1：使用逐次相乘求两个实矩阵乘积的程序，运行效果如附图1. 程序中预置了两个实矩阵A,B，运行后输出它们的乘积。 知识点：实矩阵相乘的法则及程序实现。 算例2：高斯消去法解线性方程 求解N阶线性代数方程组Ax=B的小程序，运行效果如附图2. 程序中预先给定了系数矩阵A和值向量B的值，执行后输出解向量。 知识点：消去法矩阵运算的程序实现。 算例3：求n阶实矩阵A的逆矩阵A-1的小程序，运行效果如附图3. 程序中预置了A的值，运行后分别输出A,A-1和A*A-1的值。 知识点：高斯-约当消去法的计算方法及程序实现。

pku online judge 的部分题解代码-the solution code of several problems of pku online judge

这是一个关于二叉树遍历的源代码，是用C语言的所描述的，是关于二叉树遍历的数据结构的算法问题，

任意合数分解成质数的程序-Arbitrary composite number into prime number of procedures