的傅立叶变换,工程技术中，常将看成一时间信号，相应的空间，称为时间域和空域；将其傅立叶变换看成频率函数，相应的空间称为频域。称为其相角，这在物理上是有良好背景的...

一维伽辽金型无网格法MATLAB程序 无网格方法采用基于点的近似，可以彻底或部分地消除网格，不需要网格的初始划分和重构，不仅可以保证计算的精度，而且可以大大减小计算的难度。然而，由于目前的无网格近似一般没有解析表达式，且大都基于伽辽金原理，因此计算量很大，要超出传统的有限元法；另外，无网格近似大都是拟合，因此对于位移边界的处理比较困难，多采用拉格朗日乘子法处理。-1维伽Galerkin-type meshless method MATLAB procedures meshless method based on the point of approximation, can be completely or partially eliminate the grid, the grid does not require the initial division and reconstruction, not only can guarantee the accuracy of the calculation, and can greatly reduce the difficulty of calculation. However, due to the current meshless approximation there is no analytic expression in general, and mostly based on the Galerkin principle, the calculation of a large volume, it is necessary to go beyond the traditional finite element method In addition, the meshless approximation are fitted, so displacement of the border more difficult to deal with, the use of Lagrange law.

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摸索了些，关键是几个参数自己一定要选对，否则测量精度大打折扣，定位的时候发现3个节点定位。 ，和n，y位为小数，所以要做相应处理（整数要左移两位） 值要再处理一下。

DELPHI写的FFT程序，有曲线的演示，方便大家参考。-DELPHI FFT written procedures, the demonstration curve, convenient reference.

Implemantation of the noising method algorithm for traveller salseman problem on java.

求素数，并且保存于文本文件，并且下次执行还可以接着上次的结果继续找下去 所以总有一天你会找到最大的素数……每天就像挂Q一样挂一下这个程序就行了-Seek primes, and stored in a text file, and the next performance can also be followed by the last results continue to look down so that one day you will find the largest prime number ... ... the same day, just hanging Q hang about this program on the list ... ...

使用java写的大量有用算法,可以下载观看比较xuexi!-use of a large number of useful algorithms can be downloaded to compare xuexi!

感知机模型delphi版-Perceptron model version delphi

atical Graphic Plotter Description: You can draw difficult mathematical graphs painlessly with this program. For example, you can draw (x^3+2x+3)/(2x^2+x+1) easily with this program.

并行计算两个矩阵相乘。这个算法是原创的。可以很快实现大型矩阵的相乘。-this is a MPI program that can accompish qucik computation of multiply of two large matrix by parall computation