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Today I have published in OKay's RPM repository RPMs for MariaDB 10.2 repository. MariaDB is one of the most popular database servers in the world. It’s made by the original developers of MySQL and guaranteed to stay open source. Notable users include Wikipedia, Facebook and Google.

MariaDB turns data into structured information in a wide array of applications, ranging from banking to websites. It is an enhanced, drop-in replacement for MySQL. MariaDB is used because it is fast, scalable and robust, with a rich ecosystem of storage engines, plugins and many other tools make it very versatile for a wide variety of use cases.

MariaDB is developed as open source software and as a relational database, it provides an SQL interface for accessing data. The latest versions of MariaDB also include GIS and JSON features.

According to the MariaDB Knowledge Base, upgrading from MariaDB 10.1 to 10.2 is quite simple. Please read the article before any change.

RPM's are available for Centos 6 and 7. And you can find it if you type yum search mariadb102-release.


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If you have studied any engineering career, you should have studied at some point numeric analysis and learned the least-squares method. Just remembering you, least-squares method aims to minimize the error of the given points when guessing the curve coefficients.

So, if you have some points and you know the order of the equation, this is what you need to know to get the coefficients.

I will write in this article how I used a PHP Artifical Intelligence library to solve any N-order linear equation.


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If you are running a serious business, having a webchat in your website page is kind of a must these days. Although  I have had some discussion with a friend of using Facebook Messenger or not I really prefer for the following reasons:

  1. Accessible through the WEB or in a mobile,
  2. Not another application to install,
  3. Open to robot coding,
  4. Very short learning curve,
  5. Public information from the profile is accessible for marketing purposes, and
  6. who does not have a Facebook Account?

I will write how I made it work.