math

真正的传世世界SQL版源码 DEPHI 语言编写(True handed down world SQL version source code DEPHI language compilation)

说明：  Background Given a set of rectangles {R1, R2, …, Rn}, compute the area of their common intersection. i.e., Area(R1∩R2∩…∩Rn) The edges of the rectangles R1, R2, …, Rn, are either vertical or horizontal lines. For example, the intersection of 4 rectangles, R1, R2, R3, and R4, in the following figure is the shaded rectangle. Input The input contains (N + 1) lines. The first line specifies the number of rectangles N, where 1 < N < 1000. Since the sides of the rectangles are parallel to the x-axis and y-axis, each rectangle is bounded by the lines x = x1, x = x2, y = y1 and y = y2 and each subsequent line of the input file thus specifies one rectangle in the following format: x1 x2 y1 y2 such that 0 <= x1 < x2 <= 10000 and 0 <= y1 < y2 <= 10000, and x1, x2, y1 and y2 are integers. Output The output file contains the area of the intersection of all the rectangles.

这是一份tex文档，对于写论文很有帮助,希望要写论文的小伙伴们有缘看见。(A piece of document)

说明：  它将求解域看成是由许多称为有限元的小的互连子域组成，对每一单元假定一个合适的（较简单的）近似解，然后推导求解这个域总的满足条件（如结构的平衡条件），从而得到问题的解。(It regards the solution domain as consisting of many small interconnected subdomains called finite element elements, assumes a suitable (relatively simple) approximate solution for each element, and then deduces that the solution of this domain satisfies the conditions (such as the structural equilibrium condition), so as to obtain the solution of the problem.)

说明：  开发规范要求，严格按照此文档来进行编码，非常好的开发规范文档(Development specification requirements, strictly in accordance with this document for coding, very good development specification document)

VB写Windows XP样式的进度条 Xp Progress附代码，进度条有仿标准XP风格、搜索风格、平滑样式风格，另外还有多种颜色，比如蓝色、橄榄绿、银色等，还可以自定义进度条颜色，另外在Loading过程中，会适时显示加载进度，代码中还附有一个竖向进度条的应用实例，相当实用的进度条源码资料。

说明：  基于MMC显式拓扑方法实现连续体结构拓扑刚度最大化优化(topology optimization based on MMC method)

给定如下的一组关键字，建立一棵二叉排序树，插入结点等操作-Given the following set of keywords, the establishment of a binary sort tree, insert-node operation

带弹性效果的flash图片效果，鼠标放上后图片弹性展开，鼠标移开后又恢复显示，操作起来十分动感，感觉不错哦。可作为一个Flash图片导航菜单来使用，源文件完整。

说明：  使用谷歌浏览器打开，可以直接翻译为中文。该文档是通过其他软件制作而成(Use Google browser to open, can be directly translated into Chinese)