On Polyominoes

Three weeks ago I had to work on polyominoes for a final project. Since I had to program an enumeration quickly, I wanted to find a simple algorithm to do it. Well, my search was hard. I barely found information on enumeration algorithms and read the work of many people including Redelmeier, Knuth and Ares Ribó. I chose to go the Redelmeier way because of the short time to complete the task.

It’s official…

Ok, first time was fun, but now I hate it… I have deleted about 1000 spam comments in about a week… suggestions accepted…


Hey!, today while checking the comments for my site I found the amazing quantity of 117 comments… all of them spam! hahaha… this is a new record!

First rain since september

Finally, after six months it was so heavy. This is my garden covered by hail.


How to change the screen resolution of Solaris 10 running in vmware First you must install the vmware tools on your virtual machine. Edit your xorg.conf file: vi /etc/X11/xorg.conf Under the section “Monitor” put a number sign (#) in front of all those screen resolutions you don’t want. Save your file, log off and log on again.

What The GIMP needs

Photoshop is one of those so popular applications often missed in the Linux world. Ok, ok, the GIMP is there, but you have to learn to use it. Even moving a simple selection around becomes a hard to accomplish task. This makes me think, about all that people who has spent so many hours learning Photoshop. The solution: programming an interface very similar to Photoshop. And I mean, get the same keyboard shortcuts, menus, get an MDI interface, arrange tools in a similar way, etc.

Oracle XE on Ubuntu

Do you want to know how to set up Oracle? It is pretty simple and this tutorial will take you step by step through the installation process. Installing Oracle XE on Ubuntu.

Installing Oracle XE on Ubuntu

My first encounter with Oracle was back in 2001. It was installed on a Windows 2k test server. We worked in a one year long project and I had enough time to learn about it. I just remember having encountered feelings. SQL was very pleasant: the CASE keyword was not part of my daily queries so I found it extremely useful to do rows to columns conversions. Text functions helped us implement all our crazy ideas for a search engine.

Back from the hospital…

Hey there!, I’m back after a week in the hospital. Must say I really missed the Internet. My recommendation: don’t skip any meal! Always make time to eat and enjoy every food. According to some Japanese ideals, you should enjoy each bite and let your body shake to the flavors mix. After all, this week was just a reminder to keep my life in balance…

WebDAV Server is up and running!

I’m really excited about WebDAV! It just works! This is a tutorial I wrote: https://andres.jaimes.net/setting-up-a-webdav-server/ Some minor issues are pending, but I’ll keep you posted. Happy new year!!!