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k-d树的matlab程序，包含了KDTREE, KDTREEIDX and KDRANGEQUERY functions。提供了两个Demo scripts(kdtree_demo.m & kdrange_demo.m),很实用( This distribution contains the KDTREE, KDTREEIDX and KDRANGEQUERY functions. Included are the source code files in kdtree/src, as well as precompiled mex files for the following systems: - Mac OS X (Matlab 6.5) - Redhat Linux (Matlab 6.5) - Windows (Matlab 6.1) Two demo scripts are provided (kdtree_demo.m & kdrange_demo.m). The new features added June 2004: + You can now use N dimensional data points, where N>3. + Use KDTREEIND to return the index value to the closest point, instead of the closest point values. + KDRANGEQUERY can now return these index values as well. Written by/send comments or suggestions to : Guy Shechter guy at jhu dot edu June 2004 )

将梁分成9个单元，在中间受力，建立整体的刚度矩阵，建立整体模型。(The beam is divided into nine units, in the middle forces, the establishment of the overall stiffness matrix, the establishment of the overall model.)

说明：  虚拟信号发生器是一个GUI产生（1）周期函数（包括正弦，三角，锯齿，和方波）不同振幅，频率和阶段 （2）不同振幅平方脉冲序列，频率，分期及职责循环 （3）双参数指数函数 （4）高斯曲线之间的范围不同，标准偏差和手段，以及（5）不同幅度的高斯噪声。你也可以添加一个偏移或高斯噪声的前四个以上任何职能。图形用户界面还能使用户可以添加指定的信号（或者乘以它的）一个先前定义的信号。 (Virtual Signal Generator is a GUI that produces (1) periodic functions (including sinusoidal, triangle, sawtooth, and square waves) of varying amplitudes, frequencies, and phases (2) square pulse trains of varying amplitudes, frequencies, phases, and duty cycles (3) two-parameter exponential functions (4) Gaussian curves of varying bounded areas, standard deviations, and means and (5) Gaussian noise of varying amplitude. One can also add an offset or Gaussian noise to any of the first four functions above. The GUI also enables the user to add the designated signal to (or multiply it by) a previously defined signal. )

本matlab程序用DFP法求解多元模型的最小值（给出初始点和精度要求条件）。(The matlab program using DFP method for solving the minimum multivariate model (given initial point and precision conditions).)

数值分析计算程序例子，龙贝格积分法求解函数积分，计算时注意函数端点处matlab是否能求出函数值，如不能需手动输入。(Numerical analysis of examples of the calculation program Romberg integration method for solving function integral.)

this file is about risk managment in marketing....

游程检验,适用于数学学习学生，或者计算机方面需要的研究者(Runs test for students of mathematics learning, or the computer needs of researchers)

模糊C均值方法，将模糊的方法用到K均值方法里面(Fuzzy C Means method, the fuzzy approach method which used the mean K)

关于MATLAB对属性约简的程序。适合初学者，看看，共同学习(On MATLAB for the attribute reduction procedures. Suitable for beginners, take a look at the common learning)

设计并仿真了适合Ka 频段卫星移动信道的信号传输体制仿真结果为最终实现方案提供 了可靠的数据同时针对所设计的Turbo 编码和GMSK 调制相结合的信号传输体制提出了迭 代信道估计算法明显改善了系统的误码率BER 性能(Designed and simulated for Ka-band mobile satellite channel signal transmission system simulation results for the final program provides reliable data also for the design of the Turbo coding and GMSK modulation combined signal transmission system proposed iterative channel estimation algorithm significantly improved the system bit error rate BER performance)