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Summation of sequence of integers is always a common problem in Computer Science. Rather than computing blindly, some intelligent techniqu...
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编程语言 时间：
2015-06-09 23:48:43
阅读次数：
438
原文链接http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-00sc-introduction-to-computer-science-and-programming-spring-2011/unit-1/...
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其他好文 时间：
2015-06-09 21:46:47
阅读次数：
98
arXiv is an e-print service in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance and statistics. There'll be lots of papers in advance. Here's some recent papers which is important or interesting....
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其他好文 时间：
2015-06-09 17:27:18
阅读次数：
128
Description Order is an important concept in mathematics and in computer science. For example, Zorn's Lemma states: ``a partially ordered set in which...
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编程语言 时间：
2015-06-08 18:54:31
阅读次数：
121
Time Limit:1000MS Memory Limit:10000KDescription As we all know, machine scheduling is a very classical problem in computer science and has been st...
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系统相关 时间：
2015-06-08 00:49:21
阅读次数：
160
我的环境是python2.7.8、django1.6.4、apache2.2。问题：在django自带的runserver环境下没有任何报错，但是配置在apache上出现了 “The _imagingft C module is not installed”的报错。找了很久原来是因为import I...
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Web程序 时间：
2015-06-06 17:55:32
阅读次数：
154
Problem DescriptionEddy usually writes articles ,but he likes mixing the English letter uses, for example "computer science" is written frequently "co...
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其他好文 时间：
2015-06-05 19:09:09
阅读次数：
131
转自：http://blog.csdn.net/yockie/article/details/8498301介绍 把Python的基础知识学习后，尝试一下如何安装、加载、使用非标准库，选择了图像处理模块PIL。 Python Imaging Library (PIL)是PythonWar...
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编程语言 时间：
2015-06-03 13:14:11
阅读次数：
325
最近在学习公开课IntroductiontoDataScience第二部分讲到关系数据库与关系代数（RelationalDatabases，RelationalAlgebra）其中讲到了关系数据库SQL与RA的关系选择selection,负号σc(R)表示查询表R中符合条件c的列，例如σSalary>40000(Employee)表示"select*fromEmployeewh..
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数据库 时间：
2015-06-03 06:11:05
阅读次数：
157
A Different Task
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The (Three peg) Tower of Hanoi problem is a popular one in computer science. Briefly the problem is to transfer all the disks from peg-A to peg-C using peg-B a...
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其他好文 时间：
2015-06-02 11:21:43
阅读次数：
139
