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Common Errors in Metatrader 4

Metatrader has a built-in error identification mechanism within its terminal. Like most software, errors detected are expressed in numerical codes. The errors can usually be found under the experts or journal tab of your Metatrader terminal window. If you are using custom software for trading, such as an expert advisor or script, you may also ask your programmer to display the errors on the screen. This articles lists the most common errors experienced by traders while using the trading terminal.

Error 3 "Invalid Trade Parameters"

It means that one or more of the trade parameters of your most recent order was unacceptable to the broker. If the order was sent by a human trader, check the lot size, stoploss, and takeprofit values ​​and see if they meet the requirements of your broker. If it's an expert advisor, you should also check on the comment variable, as giving a null value or double quotation marks ("") to the variable are sometimes rejected by the server.

If the last order sent was for a pending order, check if your broker allows pending order expiration. Some brokers disable this feature, and would only accept a zero value for the variable.

Error 6 "No connection with trade server"

It simply means that the terminal is unable to connect to the server. This could be a server fault, but it's often a local internet connection problem.

If your internet connection is fine, check the internet connection status at the lower right-hand portion of your Metatrader terminal. If the status says either "No connection" or 0/0, then your terminal experiencing a problem in using your internet. Restart Metatrader immediately. This does not happen often, but could be an alarming issue if left unnoticed.

Error 8 "Too Frequent Requests"

This error can also be encountered by human traders, but expert advisers are more likely to experience it. Each broker has a limit on the number of requests it can take for any given account. This error appears when an account has reached that limit. This is often a sign of bad expert advisor programming or bad EA logic. Reconsider the rules on the EA.

Error 65 "Invalid Account"

This error often happens in demo accounts. Most demo accounts have a date of expiration, and when they reached it, such accounts are considered "invalid." No one, not even an expert advisor, can trade using an invalid account. Just create a new demo account.

If it's a real account, then you have a real problem. Contact your broker immediately.

Error 129 "Invalid Price"

For expert advisors, if encountered a lot and consistently, it's a sign of bad programming. For human traders, it's a sign that the market currently being traded is highly volatile. It could have been purely caused by market factors, such as trading news.

Error 130 "Invalid Stops"

Invalid stops means that the stoploss, or takeprofit, or both, are unacceptable to the broker. Brokers often set limits to stops to limit their risk. Make sure that your …

DirecTV and Dish Network Receivers Compared

One thing that you will find when you comparison shop the two leading satellite TV programming service providers is that they both are offering free complete satellite TV systems as part of their introductory offers when you sign an extended programming service agreement. While on the surface it sounds like a unbelievable give-away, it really is not the deal of a lifetime, because you do have to sign on to an extended programming service agreement and you can rest assured that the cost of the satellite TV system is factored into the total cost of that agreement or they would not be offering it.

Dish Network has three receivers that they offer and they include a standard receiver, a DVR receiver and a high definition receiver. The standard receiver that they will offer you comes with a few basic features that include parental controls for regulating the programming that your children can access, on screen program guide and a channel storage feature for storing favorite channels.

Their standard DVR receiver that they have to offer has some other features to offer you including of course the DVR that has a one-hundred hour memory capacity. Another great feature of their DVR receiver is the ability to pause a program at anytime and then restart it right where it was paused.

They also have a standard high definition receiver in stock to offer you that comes with limited auxiliary functions. It does however feature Dolby Digital Audio and auxiliary component output jacks for running the audio feature through your stereo speaker system if you choose to.

If you want a free HD DVR it does not come free, because you will have to pay $ 200 for it. However; it does come loaded with features and has a memory capacity for 200 hours of programming in both standard and high definition format.

DirecTV also has three separate free receivers for you to choose from and all of DirecTVs satellite components are made by Hughes Electronics Corp. Their standard base level receiver is called the Director and it features what is called "DirecTV Active" and this unique feature allows the user to set up personalized updates that will show daily lottery results, weather and also a menu of preferred programming.

Their next choice in receivers is their Hughes Executive and it comes with several features including DVR, parental control, custom menu and programming search function. With the programming search function a user can locate a program by entering it in by name or even an actors name that is in the program.

DirecTVs next choice in receivers is their HD receiver that comes with output jacks to route the Dolby digital surround sound system through your stereo speaker for a theater quality sound. DirecTVs HD DVR receiver has all of the same functions as Dish Networks HD DVR receiver and even comes with the same price tag of $ 200 but DirecTV does offer a $ 100 mail in rebate offer. …

Constructionism, Logo, and Seymour Papert

Seymour Papert – Logo

In the mid 1960s Seymour Papert, a mathematician who had been working with Piaget in Geneva, came to the United States where he co-founded the MIT Artificial Intelligence Laboratory with Marvin Minsky. Papert worked with the team from Bolt, Beranek and Newman, led by Wallace Feurzeig that created the first version of Logo in 1967.

The Logo Foundation

'Logo is the name for a philosophy of education and a continuously evolving family of programming languages ​​that aid in its realization.' Harold Abelson – Apple Logo, 1982. This philosophy is based on Constructivism (a learning theory). The Logo Programming Language, a dialect of Lisp, was designed as a tool for learning. Its features – modularity, extensibility, interactivity, and flexibility follow from this goal. It is used to develop simulations, and to create multimedia presentations. Logo is designed to have a "low threshold and no ceiling": It is accessible to novices, including young children, and also supports complex explorations and sophisticated projects by experienced users. The most popular Logo environments have involved the Turtle, originally a robotic creature that sat on the floor and could be directed to move around by typing commands at the computer. Soon the Turtle migrated to the computer graphics screen where it is used to draw shapes, designs, and pictures.

Further Information

Alan Kay and Seymour Papert envisioned in the 1960's the computer's role as a tool for the mind an 'idea processor'. They have worked at bringing computers into this role for adults and children through Croquet, and some of Croquet's predecessors like the Logo language and environment by Papert, and Squeak, the open source Smalltalk language and environment, by Kay. Squeak and Croquet have developed from the early work in Smalltalk and provided a tool for end user programming, collaboration, visualization, and simulation.

Constructionism

The work of Seymour Papert demonstrates the approach of constructionism (Papert and Harel, 1991) (Resnick, 1996). The Constructionism idea is based on the constructivist theories of Piaget. To this theory constructionism "adds the idea that people construct new knowledge with particular effectiveness when they are engaged in constructing personally-meaningful products" (Resnick, 1996). Resnick goes on to say "This vision puts construction (not information) at the center of the analysis. It views computer networks not as a channel for information distribution, but primarily as a new medium for construction, providing new ways for students to learn through construction activities by embedding the activities within a community. " Resnick explains the theory known as Distributed Constructionism. This involves a community gaining an understanding of a problem by interacting with a knowledge building community, the problem to be modeled, and tools to model the problem, and build a solution. An example that Resnick cites is the work of Kimberly (1995) where participants became part of the simulation that they constructed in order to understand economic models. The idea of ​​constructionism is related to end user programming, and ontology modeling, and building. Resnick explains his use of interactive web based knowledge …

Top 5 PHP Frame Work List to Speed Up Your Programming Efficiency

PHP is a widely used and open source scripting language which designed for web development to build dynamic web pages. PHP Applications are normally hosted or found on Linux Servers. Its functionality same as Windows platform by Active Server Pages Technology.

PHP Frameworks are great way to increase programming efficiency. There are so many php frame works are available in the market. You can use it as per your project requirements. Let choose PHP Frameworks to your php programmers as per their requirement. Let’s start with more elaboration on Top 5 Php frame works.

Zend Framework – This frame work is an open source and object-oriented web application framework that you can implement with PHP 5. Zend Framework offers individual components for many other common requirements in web application development. It also seeks to promote web development best practices in the PHP.

Smarty Framework – Smarty is also known as Template Engine. It focuses on quick and easy development and deployment of web application. It has Pure PHP Template Option and most power full feature Template Inheritance. It also works with Tons of Template Syntax Enhancements and PHP Streams Support (per template/variable/include).

CakePHP – CakePHP is rapid development & open source web application framework for PHP to produce an extensible architecture for developing, maintaining and deploying applications. It usages most common design patterns like MVC and ORM. It also reduces development costs and coding efforts. CakePHP is easy to use and simple framework. It is the most secured frame work security, authenticated, and session handler.

Symfony – Symfony is a full-stack framework. This frame work provides architecture, components and tools for developers to build complex web applications faster. It is packed with supplementary tools helps you to test, debug and document your project. It is compliant with most of the web “best practices” and with web “design patterns”. It has also included most common web features.

Pardo – Pardo is a component-based and event-driven framework for rapid Web programming. Component of Pardo is a combination of a specification file (in XML), an HTML template and a PHP class. It has some other features like ease of use, robustness and team integration.

This is glimpse of all famous PHP Frame Works and its features. You can customize it on your way as per project requirement. Main uses of frameworks are rapid application development, get rid of to much coding and many more. Hope this article will help you to choose Best PHP Frame Work as per your project requirement.…

A Few Things to Consider When Comparing Satellite Service Providers

Selecting a satellite TV programming service provider is not anywhere near as easy as it used to be only a few years back and this is due to a number of reasons. One of the largest reasons is that satellite TV programming service providers in general are now offering far more then they ever did in the past. This not only includes their actual programming but it even goes as far as their promotional give-aways as well.

It was only a decade ago that a new satellite TV subscriber had to purchase their own satellite system to begin receiving satellite service but now with all of the providers offering free satellite TV systems and installation it is something else to consider and compare when shopping around for a service provider. With regards to service there really is not a whole lot to consider when comparing the top satellite service providers, because they all have consistently received high marks from JD Power and associates for their records in overall customer satisfaction.

If all that you are in the market for is an entry level basic programming package, you need not look too far because all of the leading satellite programming service providers have excellent entry level packages and they are very comparable both in pricing and the number of channels that they come with. However; because the leading satellite service providers have very flexible policies regarding upgrades in both packages and receivers you may want to look further to make sure you will be content should you decide to upgrade from your entry level package.

Its items such as high definition program where the two leading providers DirecTV and Dish Network beginning to demonstrate their differences. When comparing the two in this new format of programming, its hard to break it down to just hard numbers. This is due to the fact while Dish Network leads DirecTV in total numbers of high definition programming channels 31 to 12 its how they are marked that can make a difference.

Dish Network is going to require you to subscribe to their own repertoire of high definition programming no matter what channels you want but DirecTV, on the other hand, while having far fewer channels to offer will allow you to select out as few as one channel when adding high definition to your programming package.

The real difference in their programming packages is the channel number increments that they are composed of with the exception of their largest programming packages which both contain around 250 channels. While Dish Networks "Americas Top" series comes in three sizes ranging from 100, 200 and 250 channel packages, DirecTVs "Total Choice" series range in sizes from 140, 185 and 250 channel programming packages.

Both DirecTV and Dish Network have a broad range of programming channels for you to select from if you wish to build on your programming package, including adult programming and even ultra-premium sports programming channels that are offered by DirecTV. These are two channels …

Dish Network’s Baby Steps

There is a new channel in town, and it is just for babies. It is great news that Dish Network now carries the first and only programming designed just for the very young ones in the family. BabyFirstTV is one of the latest additions to the already exceptional family programming of Dish Network. This innovative channel is backed and approved by developmental experts and has an enormous amount of imaginative, commercial-free shows designed for children from the age of 6 months to three years. EchoStar, based in Englewood, Colo. is proud to include this latest addition to the Dishnetwork family. You can find this child-oriented network on channel 126. It is available as an a la carte choice for less than ten dollars a month, and free previews are running in the Preview showroom, which is channel 288.

BabyFirstTV is a twenty-four hour channel, devoid of commercials, and is created expressly for babies, young children, toddlers and their parents. Learning is the name of the game, and this channel supports early learning, play, and interaction with both Mom and Dad. The low cost of BabyFirstTV is less than the cost of a DVD designed for babies and a single month would have over 700 hours of programming for the baby and parent! BabyFirstTV has over 40 original programs for young children. Some of the programs are: Rainbow Horse, I Can Sign, and Sandman. Parents will also be familiar with some of the brands that will be featured on this new channel. For example, Baby Songs, First Impressions, Brainy Baby, So Smart, and others. The color-coded programs will indicate to parents the educational content of each show. Blue will be for numbers education and green will indicate educational content involving the senses. There are subtitles included, where appropriate to help parents know to better utilize the original programs. Also, the programming is smarter than it first may appear. It is uniquely calculated to provide layers of instruction, so that older or more accelerated children can concentrate on different things within the same programming.

This instructive, deeply rich content will provide children with hours of learning that have never been seen before. The positive programs will foster faster education and stimulate fresh methods of learning for young children. One of the programs features two squirrels that play a game called hot and cold, and involves trying to find the acorns that they have hidden. Another program is called The Numbers Farm and will help children learn to count. It also promotes friendship and learning about animals. Learning to count to five has never been this much fun before. Catch this channel and much more Family programming on Dish Network.…

Technology And Child Education

Techno-Toddlers

When I was a child, I was very up-to-date on the latest technology. I watched Sesame Street, followed by Mr. Rogers Neighborhood. My home received all the channels available – three local channels, and two PBS stations. I surfed the available programming by going over to the television, taking the pliers off the top of the TV, gripping the pin and twisting (the plastic dial had broken off years before my birth). Telephone calls could have made on our large, black rotary phone. During fifth grade, I played Pong and thought I was really onto something. We got an Atari 400, and I experienced my first educational programming: Lemonade Stand, while was a very early version of Roller Coaster Tycoon. Nowadays, a four-year-old could probably program that game while watching the latest episode of Dora the Explorer and surfing the Internet for accompanying website games to develop his map skills.

Technology can be both helpful and harmful for your children. Let's look at some of the pros and cons of using technology with your kids:

Stimulation and Learning Toys

Computer games and toys that simulate computers can be very helpful for learning. Repetitive games that teach letters, numbers and reading can be great, and the graphics and music accompaning basic facts can help kids learn.

Be careful, however, not to let your child become over-stimulated by video-type toys. Reading books with each other is another great way to develop reading readiness, and playing with puzzles or basic toys is also good. You do not want your child to depend on flashing lights and buzzers in order to learn new skills.

Health Risks

Video and computer games have been linked to vision injury in children, as well as carpal tunnel syndrome. In addition, addiction to these games is a very real consensus. It is extremely important to set time limits on gaming. While your child may develop some killer small motor skills, he could have ruining the nerves in his hands at the same time. Keep an eye on him (and his fingers).

Predators on the Net

The Internet is a remarkable learning tool. Work together with your child to research anything of interest. Most children's programming also has websites with games and activities. There are also interactive sites where children build houses, care for pets, or submit writing.

Close parental supervision is of utmost importance when children are surfing the web. Chat rooms on kids' sites are often prowled by child predators. If your child has an email address, monitor it carefully for spam and sexual content. Kids are naturally curious, but can get into a lot of grown-up trouble quickly if left to their own devices online.

Cell Phones

My daughter came home from fourth grade yesterday, begging for a cell phone. Since her teenage brothers both have phones, I assumed she just wanted to act older than her age. Not the case at all – over half her class has cell phones. The kids are talking, and …

To Create Dynamic Pages Choose An Advance Programming Language Like PHP

PHP is an open sourced server side scripting language and almost used in foremost operating systems like Linux, UNIX and also in Windows. PHP follows object oriented programming (OOPs), practical programming rules and near a combination of them. It uses command line interface, desktop applications so it is know as the best traditional server side scripting language.

PHP programming supports most of the reputed database connections like Oracle, SQL, My SQL, and ODBC so it is an easy choice for freelance programmers to build their dynamic pages with the help of PHP development. The latest version is also popular because it can be embedded HTML coding directly and can be transported by nearly all of the web servers.

PHP is a popular language because of its numerous features infused specifically to design websites or you can say to develop dynamic pages. PHP engine and the PHP coding can be used in every platform that increases flexibility of PHP language. Basically PHP is profitable for both programmers and designers, programmers who realize its flexibility and tempo and web designers who worth its handiness and user-friendliness.

PHP language can develop great business services like CRM solutions, community sites, chatting forums and E-Commerce shopping cart as well. Several pools of qualified web programmers are using PHP development for organizing their goal, resource planning and fulfilling their client requirements.

Here are a few things which you can perform with PHP:

  1. Design HTML web forms.
  2. Superb Database usability to store records.
  3. Calculate visitors by sessions and cookies.
  4. You can use arrays as well.
  5. Play with files through file management system.
  6. Creating XML for large number of product list on E-Commerce

Serialization

Serialization is not needed for all kind of databases. In some particular databases like ODBC, MS SQL etc when you wish to pass a value without mentioning its type, it gets dumb. This problem is solved correctly in the latest version of PHP. This is also an added advantage of PHP over all king of scripting languages.

Using PHP to improve design on your website

PHP has many capabilities features specifically designed for use in Web sites, including the following:

1. Securing Your Website: PHP is designed to allow user level access to the file system, it's entirely possible to write a PHP script that will allow you to read system files such as password, modify your Ethernet connections, etc. thus this can provide a customer with an exclusive membership in the business.

2. Working with Web Forms: HTML form can be displayed by PHP and it is the best way to know more about the requirements of your customers and to gather note about their detailed benefits.

3. Communicate with Your Databases: When a persistent connection is requested, PHP checks if there is already an identical persistent connection and if it exists, it uses it. If it does not exist, it creates the link.

4. Customer Loyalty Functions: PHP allows content and applications to be generated and run server-side. This is highly advantageous …

Web Development

Ventura IT

People say that the World is moving fast! Is it not true that we are assuming global dimensions? One has to pace with the ever growing World by any means available. Who would have imagined 20 years ago that communication would go wireless, satellites would be playing a major role and the modest internet would grow over us in no time at all.

Owning to the human psyche and the little time we want to spend doing everything, many Companies have emerged professing that they have gotten the solutions for us, that we can communicate with the whole world in just a few minutes.

Ventura IT took its leap into the world of Information technology about 10 years ago. Based in California USA, this company caters to the needs that a growing institution requires. It provides humungous services that include web hosting, web development, internet applications, e-commerce, graphic designing and high-level language programming.

The simple process of making a project of any kind would be placing the order with complete specifications, considering the estimate given by the company, payment and in a few weeks time your dream project would assume reality with global dimensions. What makes it innovative is the fact that so many facilities are available under one roof, which is not the case in other companies. Since it is a privately owned hi-tech company, the quality of the project is tremendous. It also has a 24-hour contact line for answering any questions.

Ventura IT has served a number of well-renounced clients like Harvard, UCLA etc. and yearns to do more by gaining experience along with expertise. There are 1000's of satisfied clients which will continue to increase as time prevails. It absolutely plays the part of supporting the business needs of an entity.

The last question that remains unanswered is that why should you choose Ventura IT? It has teams of experts who could change your company in an unimaginable way, or could make a project, which no one else could. Moreover, the amount of services it provides apart from e-commerce like programming in java, html, C, C ++ etc. can not be ignored. Just think of the next best project you want, convey it to Ventura IT, and you would be on the road of success and recognition. Click here to know more about web development

web development …

ASP Net Development Vs Java Development

The debate whether .NET Development is better or Java Development is better continues unabated with fans of each technology pronouncing the decline of each other.
Java being the predecessor of all other programming languages ​​is open source and on top of that is platform independent. Being platform independent has made it the preferred choice of amateurs and professionals alike. Being open source, Java API's can easily be accessed by developers unlike .NET which is proprietary software and which API's are not accessible. Java, being open source, users do not have to grapple with hefty license fees each year, something which is mandatory in case of proprietary software.

Java being a very old technological platform is being taught in universities for a number of years. Therefore, there is an abundance of talent when it comes to developing applications in Java. There is however a significant shortage of developers who are acquainted with the .Net platform in the developed world. You would need to offshore your application development work to a low cost location like India where you would find a significantly higher number of developers acquainted with .NET technologies.

Some developers are of the opinion that ASP. NET is just an improved version of JAVA and has been developed by overcoming shortings of Java. Supporters of .NET technologies claim that java is a language while .Net is language independent. Opting for .Net does not bind you to a single language as .Net supports multiple languages. It even supports Java as J # is very close to Java.

Another major advantage of using .Net is the ease with which it allows the exchange of data between various software applications. This occurs because the dot net platform allows different programs to exchange data via a common set of exchange formats, to read and write the same file formats and to use the same protocols. Such features make ASP.NET the preferred programming language for developing database driven websites and applications. .Net proves to be useful when applications stored on remote systems have to communicate with each other through standard internet protocols like XML, SOAP.

In my opinion, you should always develop applications on such a platform which does not get obsolete in the next five or even ten years. In simple words, you should avoid the upgrade treadmill offered by proprietary software's who ask you to upgrade every few years. …