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Description: 1.问题的提出：给定一条直线L和n（≤10）个点Ak（k=1,2，…n），都在第一象限内，求L上一点B使到n个给定点的距离之和最短。
2.问题的提出：某水池有M0m3水，其中含盐akg，现以v1 m3/min的速率往水池内注入浓度为pkg/ m3的盐水，同时又以v2 m3/min的速率从水池流出搅拌均匀的盐水. 试模拟水池的动态变化过程-1. The problem: given a straight line L and n (≤ 10) points Ak (k = 1,2, ... n), all in the first quadrant, and the L point B so that a given point n and the shortest distance. 2. The problem put forward: M0m3 have a pool of water, which salt akg, now v1 m3/min rate to the pool within the injected concentration of pkg/m3 of brine, v2 m3/min again at the same time the rate of outflow from the pool mixing uniform saline. test simulated the dynamic process of change pool
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Size: 289792 |
Author: 风过柳影 |
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Description: 此书是基于北大天网搜索引擎的原理介绍，分为上中下三部分，由简入深，值得一看-The book is based on the North Skynet introduce the principles of search engine is divided into three parts on the middle and lower, by Jane Shum, see
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Size: 3037184 |
Author: ludandan |
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Description: 湿度数据的数据处理，不错程序，可以拿来直接用(Humidity data processing, good program, can be used directly)
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Size: 1024 |
Author: kongboluo |
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