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The golden ratio is the universal law of nature, so this law can also be applied to the prediction of stock price rebound or fall. A stock has been down for a while, starting to bounce back. So where does the rebound come to an abrupt halt? Usually the fall depth and bounce height are in accordance with the Golden ratio: 0.382,0.5,0.618,0.809 and so on.Manual calculation is too cumbersome to write a small software to calculate the corresponding bounce
to create a forum. This method only obtains a forum factory with an administrator authorization token, and then callscreateForum()Method. When a user creates a new topic community, this method can be used to create a new community forum.
Listing 8: creating a forum at any time
public Forum createForum(String name, String description) { ForumFactory forumFactory = null; Forum newForum = null; try { if( description == null ) description = "";
Revolution computing can be said to be the RedHat in the statistical software field. They provide commercial services and support for open-source data analysis software R. Recently, they received a total of $9 million in venture capital investments from North Bridge Venture Partners and Intel capital, and appointed Nor
1. open-source version control system subversion 1.3 officially released: The Subversion development team recently announced the official release of subversion 1.3. As a version control system, subversion uses a more advanced branch management system than the most common cross-region Scripting (RCS). Its design goal is to replace CVs. : Http://freshmeat.net/projects/subversion? Branch_id = 13515 release_id
constantly try to encourage yourself and tempt yourself. Because even say the flowers, learning is always the most boring thing in the world-the more you know, the more you know your ignorance, the more people will be nameless panic, thereby denying themselves.V. SummarySo that's the plan. In writing this article, I was just going to make this attempt. This is what I have mentioned in the article: to constantly encourage themselves, through sharing and other ways. I wish you all a pleasant stud
Echarts's extensive web site:Http://echarts.baidu.com/doc/example.html0 programming to play the chart:http://tushuo.baidu.com/?qq-pf-to=pcqq.c2cUse the chart you want to do with it!pageencoding= "GBK"%>Echarts is the best visualization tool I've ever contacted and the fastest-growing software, and hopefully it will become a world-class open source project as soon
(); Action Settagreader (string key, Delegate tagchanged); IListget;} }The Tagreadtext property is the variable expression associated with the primitive animation: shaped like a tag1*2+tag2*5>10. I implemented a custom expression compiler eval that parses the expression syntax, separating out TAG1 and Tag2. This code is in Example-windowhelper-bindingcontrol.Next, the element component subscribes to the ValueChanged event for Tag1 and Tag2.If the value changes, Settagreader is
I. IntroductionClam AntiVirus is a free anti-virus software based on UNIX/LINUX operating systems. It supports online updating of virus libraries.Features 1.11) GNU open-source software2) Fast Scanning3) It can detect 35000 types of viruses, including Microsoft Office documents and macro viruses.4) ability to detect compressed files (Zip RAR Tar Gzip Bzip2 ......
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The data downloaded from the National Geographic information center is in the shape file format. The shape file data consists of three files, *. SHP, *. DBF, and *. shx, which respectively store space data, attribute data, and the relationship between the two. *. SHP has special software browsing. *. DBF can be viewed in a general text browser, an
Open source virtual machine software VirtualBox has been updated to version 1.5.6. Some of the interesting changes include fixing the problem of seamless mode and Full-screen mode, improving the performance of Solaris clients, supporting read-only shared folders, supporting E1000 device emulation, and better compatibility with Kernel 2.6.24, and more. The full ch
Introduction: Open source software has a great advantage, this can not be denied, whether technically or product maturity, many open source Web site programs to meet the needs of most users. But for some companies, the process of self-development may be more practical, the s
. RawtherapeeRawtherapee Home Http://www.oschina.net/p/rawtherapeeRawtherapee is written in C + + and uses the GTK + frontend to read raw format files using Dcraw. It attracts attention because it is one of the oldest raw converters on the Linux platform that have a usable GUI. Developers explain the reason for open source, said not to stop developing software, b
EJBCA is a valuable open source system, for the current domestic PKI technology and products have reference significance. When EJB3.0 released, I translated the software introduction, I hope to play to let everyone pay attention to the effect. Interested parties are welcome to further explore this software with me. EJB
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database, we'll take neo4j as an example of how to use a graphical database. NEO4J is the open source graphics database provided by Neo technology. It organizes the data according to the node/relationship model described above and has the following set of features:
Support for the transaction. NEO4J enforces that every change to the data needs to be done within a single transaction to ensure data
This list comes from the Black Duck Software's "Rookie of the Year" award, which focuses on JavaScript and mobility.
The Black Duck released its "open source rookies of the year" in Wednesday, which highlighted 10 Open-source software that was noteworthy in 2013.
The
1:OPENCV (Computer vision must learn the library, the individual thinks its role is quite formidable)http://opencv.willowgarage.com/wiki/2:cvpaper homepage on the recommended open-source visual algorithm library, the most complete, but also very new, strongly recommend everyone to seeHttp://www.cvpapers.com/rr.html3:CMU image processing and computer vision Software
cite an extreme example. If we have a Cassandra cluster and it's made up of five physical machines. One of the physical machines is 4 times times the capacity of the other physical machines. Then setting the replication factor to 3 o'clock will cause the same data to be stored on a physical machine with a larger capacity. It's not much better than setting it to 2.
So in determining the replication factor of a Cassandra cluster, we carefully set an appropriate value based on the number and
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