如何计划时域有限差分法

php上传图片文件，多种格式，可显示是否上传成功，可以预览图片效果，直接在浏览器里输入Url，即可操作。up.phpup2.php，提供文件上传到哪个路径，可查看。

科学工程C源程序范例解,里面不止给出了程序，算法，还有很多的相关知识的说明，很有用。-scientific engineering C source model solution is not inside the process, algorithm, there is a lot of knowledge related to the note, very useful.

一个矩阵相乘的c语言代码-a matrix multiplication code in C Language

使用卡尔曼滤波进行目标追踪的matlab源代码-The use of Kalman filter for target tracking matlab source code

高斯―塞德尔迭代法。-Gauss- Seidel iteration.

经典关联分析算法apriori java版。可解决关联分析问题，比如分析超市购物关联关系，产品交叉销售可能性，客户价值提升等

这是粒子群算法的一个源程序，程序很简单，已经运行过了，可以用，对初学者是个不错的程序-This is a source particle swarm optimization algorithm, the program is very simple, has been running over us, we can use, for beginners is a good program

一个计算器程序，可以识别算式字符串形式的-a calculator program that can be identified form of a string formula

JPL的stacov文件格式转sinex格式的Fortran源程序-JPLs stacov file format change to sinex format Fortran source code

在数据库中发现频繁模式和关联规则是数据挖掘领域的最基本、最重要的问题。大多数早期的研究采用了类似Apriori算法的产生候选级并测试迭代的途径代价是昂贵的，尤其是挖掘富模式和长模式时，Jiawei Han提出了一种新颖的数据结构FP_tree,及基于其上的FP_growth算法，主要用于有效的进行长模式与富模式的挖掘.本文在讨论了FP_growth算法的基础上，提出了用Visual C++实现该算法的方法，并编写了算法的程序。-found in the database model and the frequent association rules is the area of data mining the most fundamental and important issues. Most of the early studies used a similar Apriori algorithm for the selection of candidates and test-iterative way was costly, particularly mining the rich patterns and long model, Jiawei Han proposed a novel data structure FP_tree and on the basis of their FP_growth algorithm used effectively the model for long and rich patterns of excavation. This paper discussed the FP_growth algorithm on the basis of the Visual C of the algorithm, and the preparation procedure of the algorithm.