matlab

各类聚类算法程序包，包含各种经典的聚类算法，例如：k-mean聚类等(Various types of clustering algorithm package, contains a variety of classic clustering algorithms, such as: k-mean clustering, etc.)

本代码用于仿真车辆在两条单向三车道道路上移动的情形，考虑到了加速度，超车，背景流量等(This code is used to simulate the movement of vehicles on two one-way three-lane roads, taking into account acceleration, overtaking, background traffic and so on)

PADDEDSIZE Computes padded sizes useful for FFT-based filtering

MATLAB PROGRAMS MATLAB PROGRAMS MATLAB PROGRAMS

说明：  切削力随着磨削深度、速度的增大的趋势，这对于切削过程来说是非常重要的，如果增加相应的参数，就会导致不同的结果(The cutting force increases with the grinding depth and speed, which is very important for the cutting process. If the corresponding parameters are increased, the results will be different)

盒维数，盒维数盒维数盒维数盒维数盒维数盒维数(Box dimension, box dimension box box box dimension dimension dimension dimension box Box dimension)

一个带数据的遗传优化神经网络算法，运行前在matlab输入A=load(D:数据.txt) (A data genetic optimization of neural network algorithm, before running in MATLAB input A=load (D: data.Txt) )

This paper describes two digital implementations of a new mathematical transform, namely, the second generation curvelet transform [12, 10] in two and three dimensions. The first digital transformation is based on unequally-spaced fast Fourier transforms (USFFT) while the second is based on the wrapping of specially selected Fourier samples. The two implementations essentially differ by the choice of spatial grid used to translate curvelets at each scale and angle. Both digitaltransformations return a table of digital curvelet coefficients indexed by a scale parameter, anorientation parameter, and a spatial location parameter. And both implementations are fast in the sense that they run in O(n2 log n) flops for n by n Cartesian arrays in addition, they are also invertible, with rapid inversion algorithms of about the same complexity.

The rar file contains different sample tests for practice of gre exam.

说明：  根据前人研究成果可以证明，煤镜质组反射率各向异性对煤田构造特征具有指示意义，镜质组最小反射率可以指示构造主应力方向。然而，在实际测量中，如何得到真正的镜质组最大、最小反射率及其方位是其中的关键环节。利用现有的岩石有限应变椭球拟合方法进行镜质组反射率椭球体拟合不失为一种行之有效的方法，可以由此确定镜质组最大、最小、中间反射率及其三维空间方位。 将之前拟合得到的反射率椭圆看作岩石有限应变椭圆即二维应变，其由之前的统计方法测定得到，三个截面的数据对于拟合唯一应变椭球来说是过多的，因此不可避免出现误差，导致三个截面应变椭圆不通过同一个椭球的情况。为了从三个截面数据得到唯一的应变椭球，需要对得到的数据进行相容性调整。采用Oertel的方法，从每一测量参数在不同截面中的值是正态分布这一假定出发，利用加权最小二乘法进行误差调整。(According to results of previous studies may prove vitrinite reflectance anisotropy on structural characteristics have implications for coal, vitrinite reflectance may indicate tectonic minimum principal stress directions. However, in actual measurement, how to get real vitrinite maximum, minimum reflectivity and its orientation is the key link. Conduct vitrinite reflectance ellipsoid fitting regarded as a proven method using existing rock finite strain ellipsoid fitting method can thus determine vitrinite maximum, minimum, intermediate reflectance and dimensional spatial orientation . Before fitting the reflectance of finite strain ellipse oval rock that is seen as a two-dimensional strain, as determined by statistical methods which have been before the data fit only for the three sections of the strain ellipsoid is excessive, and therefore can not to avoid errors, resulting in three elliptical cross-section does not pass through the same strain ellipsoid situation. In order to obtai)