edx careers

Open Online education platform EdX opened in June this year, when the Google group method "clean install on Ubuntu Server 12.04" in a brand new VPS installed A, although the final installation was successful, but also spent some trouble, Finally, the overall impression of the edx system is somewhat bloated, dependent on too much, not too lightweight. A few days ago a friend of Peking University in the insta

Premise:1. Install Ubuntu2. use vagrant+virtualbox to build the EdX Developer Stackon ubuntn and to successfully access3. Pycharm-3.4.1 is installed and activated successfully under Ubuntu4. future development in Ubuntu environmentPreparatory work:1. convert path to native /devstack/2. turn on vagrantand enter the command:Vagrantup3. using ssh connection vagrant, enter the command:Vagrantssh4. give the edxapp account A password, enter the command:SU

After practicing for several days edx Devstack, found himself e is still so poor, if and I like, continue to look down, otherwise you can gently drift over ~1. Run the edx devstackCd/devstackVagrant upVagrant SSH(The above should be more familiar with:)This article refer to Https://github.com/edx/edx-platform/wiki/Inte

Recently, due to work, an open EdX instance was installed in Ubuntu virtual machine on Azure, and the installation process encountered a lot of problems, and learned different knowledge in the process of finding the answer from the Internet.Create an authentication certificate file for SSHWhen connecting to an Ubuntu virtual machine using the Putty (http://www.putty.org/) tool, two options are available for authentication: username + password; Another

Label: Ar c working time r as Rom net 5CATEGORY first, 1. skill category; 2. improvement category; 3. Interest category.I have completed the first six courses of Andrew Ng ml, UW computer network, and dataset cience on Coursera.In the future, the service will be guaranteed to be 25 hours a week, with an average of 2.5-3 hours per working day and 11 hours on weekends. In this way, three courses can be conducted at the same time in less than ten weeks, it also needs to be arranged according to the

Note: During addition calculation, it is actually performed on a 32-bit accumulators, and pay attention to the conversion between types. Data truncation problems generally include ax, BX, CX, Dx. Ax: cumulative latches, Bx: Base latches, CX: Count latches, DX: Data latches Index latches: Si and Di Si: source index storage, DI: Destination index Storage Stack and base latches: SP and BP SP: stacked indicator latches, BP: Base Indicator latches Eax, ECx,

Functions of EAX, ECX, EDX, and EBX registers, ecxebx General registers: AX, BX, CX, DXAX: cumulative latches, BX: Base latches, CX: Count latches, DX: Data latchesIndex latches: SI and DISI: source index storage, DI: Destination index StorageStack and base latches: SP and BPSP: stacked indicator latches, BP: Base Indicator latchesEAX, ECX, EDX, and EBX: extensions of ax, bx, cx, and dx, each of which is 32

;Sb.append (Hexdigits[b >> 4]);Sb.append (Hexdigits[b 15]);Sb.append (");}return sb.tostring ();}private static class Savingtrustmanager implements X509trustmanager {Private Final X509trustmanager TM;Private x509certificate[] chain;Savingtrustmanager (X509trustmanager tm) {This.tm = TM;}Public x509certificate[] Getacceptedissuers () {throw new Unsupportedoperationexception ();}public void checkclienttrusted (x509certificate[] chain, String authtype)Throws Certificateexception {throw new Unsuppo

Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example:Add eax,-2;// It can be considered that a value such as-2 is added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. EaxIt is an accumulator, which is t

From: http://hi.baidu.com/helloembed/blog/item/2fd65453843120511038c21a.html Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "experti

Organize from the Internet Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. Eax is the ac

"Plated Careers" in ancient times refers to the emperor to eat bowls, folk rumors, can get plated careers, life and clothing without worry. In modern times, "plated careers" has become a food to eat the other said, often some people say, XXX in the national unit to work, like holding a plated careers, not worry about l

When programmers change careers to do sales [original: http://www.cnblogs.com/WinYoung/archive/2008/04/10/programmersales.html] In my last essay, published a number of regrets, put a good programmer do not do, career change to do the sale, did not expect, have several friends to my message, discuss how to change to do sales. Here I would like to talk about my own ideas, but also to some of the more successful predecessors to learn some experience. I t

also make use of the insert all into ... Select to first build a table test_tb_grade3:SQL code:1 CREATE TABLE Test_tb_grade32 (3 user_name VARCHAR2 (CHAR),4 COURSE VARCHAR2 (CHAR),5 Score FLOAT6)Then execute the following sql:SQL code:1 Insert All2 into Test_tb_grade3 (User_name,course,score) VALUES (user_name, ' languages ', Cn_score)3 into Test_tb_grade3 (User_name,course,score) VALUES (user_name, ' math ', Math_score)4 into Test_tb_grade3 (User_name,course,score) VALUES (user_name, ' English

Original table:1. A career change is to turn a column of data into a row display, and a column switch uses the sum aggregation function, and when the case is judged, the column change needs to define its own alias.Column Change statement:SELECT SUM (caseWhen t.loc = ' NEW YORK ' thenT.deptnoEND) as column_00001,SUM (caseWhen t.loc = ' DALLAS ' ThenT.deptnoEND) as column_00002,SUM (caseWhen t.loc = ' CHICAGO ' ThenT.deptnoEND) as column_00003,SUM (caseWhen t.loc = ' BOSTON ' ThenT.deptnoEND) as c

very important, to both speaking and writing. To try to read the original book, because the foreigner to write technical books is afraid that they do not speak clearly, for fear you do not understand, so speak very thin or even a bit verbose; Chinese people write books, like teaching martial arts donuts, not to see your understanding and their efforts to the extent, the master led the door, then no matter.4, learn a language and learn to play the same thing, through more practice to the unfamil

consider factors such as the ability, performance, and growth of team members.There are many books on the market for planning and management, which are worth reading. Although the theory of optimization is a technical book, it is the theoretical basis of planning, so you might as well look at a bit more. Starting from self-planning, learning more about other people's planning is also an important means to improve planning ability.SummarizeThis article systematically expounds the principles of l

))) asAnalyst $ fromEMP - GROUP byJob - the); A simplified version of the example above: 1 /* 2 1. First use decode () to perform row-to-column detection of basic data as a table!;;3 The 2.B table summarizes the data in table A and merges it;4 */ 5 withA as ( 6 SELECT 7To_char (DEPTNO) asDeptno,8 SUM(DECODE (Job,'ANALYST', Sal,0)) asANALYST,9 SUM(DECODE (Job,'Clerk', Sal,0)) asClerk,Ten SUM(DECODE (Job,'MANAGER', Sal,0)) asMANAGER, One SUM(DECODE (Job,'President

1 ' team, ' Men ' item,80 CENT UNION SELECT 1 as ID, ' Test team 1 ' team, ' women ' item,20 CENT Union Select 2 as ID, ' Test Team 2 ' team, ' Men ' item,30 CENT Union Select 2 as ID, ' Test Teams 2 ' team, ' women ' item,70 CENT) SELECT * from-T PIVOT (SUM (CENT) for ITEM in ([Men],[women])) A2.3, using the aggregation function to implementWith TAS ( select 1 as ID, ' Test team 1 ' team, ' Men ' item,80 CENT UNION SELECT 1 as ID, ' Test team 1 ' team, ' women ' item,20 CENT Uni

Programmers have been a high salary to enjoy the envy of the occupation, but with the continuous progress of science and technology, the process of development into a person can be involved in the industry, as long as the short-term training, you can become a primary program designers, the past high pay Halo has gradually receded, More thinking began to turn to the programmer's survival problem. Huge work pressure and boring code, so that more and more of the original program is not interested i