About me

  • I was born on 1974, in Spain, and have lived there most of my life, except for five wonderful years in Germany and several stays abroad.
  • I have studied Physics, did the Ph.D on that and have since worked as researcher in several institutions.
  • I now live in Madrid and work at the Spanish Research Council.
  • Programming has alwas been a passion. I have worked on multiple projects, all of them related to free software.
  • Hobbies: playing the guitar, sports, reading, languages and travelling.


  • Do no take this seriously. It is just a space to collect information, texts, photos and other stuff that me or somebody else might find useful.
  • Everything that I write here reflects my own personal opinion or experiences and is in no way endorsed by my employer or colleagues that might be mentioned in this blog.
  • All the information provided here comes without any kind of warranty. Use it judiciously and critically.

Recent programming items

  • Catching up with the ArXiv For those of you who are back from a somewhat longish holidays, I remind you about my page for reading the arXiv by dates, which may help you keeping up ...
    Posted Aug 31, 2015, 5:28 AM by Juan Jose Garcia-Ripoll
  • Generating a backtrace for bugzilla These are the steps for reporting a bug to the Gnome people. I keep them here as a reminder, because it takes some time to gather all the information.Install ...
    Posted Aug 27, 2015, 7:20 AM by Juan Jose Garcia-Ripoll
  • Matlab, C++ and OpenMP Continuing with the earlier post about Mex files and coding C++ routines for Matlab, I now leave a very nice trick.The problem is the following one: you have a ...
    Posted Aug 21, 2015, 6:23 AM by Juan Jose Garcia-Ripoll
Showing posts 1 - 3 of 10. View more »

Recent musings

  • About the difficulty of portraits It has always puzzled me the difficulty of drawing faces. This difficulty lays on two fronts: It lays on the draftsman. The person drawing is affected by serious psicological constraints ...
    Posted Sep 15, 2015, 1:01 AM by Juan Jose Garcia-Ripoll
  • La Residencia de Estudiantes If you visit our research group at the Spanish Research Council campus in Serrano Street, you will visit also a place with a rather old history of struggles to foster ...
    Posted Aug 17, 2015, 1:12 AM by Juan Jose Garcia-Ripoll
  • Spanish vintage flex pen? I found this little gem of a vintage pen that needs some restoration work. The pen is probably made of celluloid, it is a self-filler and needs a new ...
    Posted Aug 16, 2015, 8:15 AM by Juan Jose Garcia-Ripoll
  • Frankenpen: Camlin Rego + Gillot 303 Today was a day for experimentation and I tried both something stupid and amazing. Inspired by this video, I searched among the least used pens that I had and among ...
    Posted Aug 16, 2015, 8:02 AM by Juan Jose Garcia-Ripoll
  • Testing fountain pens for tone & value creation In my struggle of learning how to properly draw with pen and ink, I keep looking for the right tools and the right methods, which is kind of hard when ...
    Posted Aug 10, 2015, 11:02 AM by Juan Jose Garcia-Ripoll
Showing posts 1 - 5 of 9. View more »