About me

Who am I?

My name is Xavier Bordoy. I’m teacher of Mathematics. Since season 2013-2014, I have teached in an adults school in Mallorca (Spain) [1]. The levels that I teach are secondary school equivalent courses and preparation for taking exams to university and vocational training admission.

My email is somenxavier -@- gmail.com [5]. I have a twitter account (@somenxavier) but email is prefered for contact purposes.

About this site

Except where otherwise noted, the content on this site (including comments) is licensed under a Creative Commons Attribution 4.0 International license. This means, essentially, that you are free to use, modify and distribute the contents of this site as long as you give appropiate credit, provide a link to the license and indicate if changes were made. For more information, see the legal terms of the license.

I intend to use works licensed under a Creative Commons licence1 or in public domain. In case I could not use these kinds of works and I need to use classic copyrighted material, the use of works is done under the protection of:

  • The right of cite and outline for teaching purposes from the article 32 of the Spanish Intellectual Property Law [3]
  • Fair use of the legislation of United States of America [4]

All trademarks and registered trademarks are the property of their respective owners.


I have used free, or at least open source, software for making this site. Specificaly, I have used the following software:

I use Linode as hosting company. You can use this referal URL code for letting me to earn $20 in credit. Alternatively, you can support me buying some products of my shop


[1] CEPA Sud. Departaments. 2015. http://www.cepasud.cat/blog/departaments/.

[3] Ministerio de Cultura. Entrada 8930 del real decreto legislativo 1/1996, de 12 de abril, por el que se aprueba el texto refundido de la ley de propiedad intelectual, regularizando, aclarando y armonizando las disposiciones legales vigentes sobre la materia. 1996. http://boe.es/boe/dias/1996/04/22/pdfs/A14369-14396.pdf.

[4] Wikipedia. Fair use. 2016. https://en.wikipedia.org/wiki/Fair_use.

[5] Wikipedia. Ensaïmada. https://en.wikipedia.org/wiki/Ensa%C3%AFmada.

[6] Wikipedia. Markdown. https://en.wikipedia.org/wiki/Markdown.

[7] Wikipedia. HTML5. https://en.wikipedia.org/wiki/HTML5.

  1. preferred CC-BY and CC-BY-SA because I think they fits better my needs: they allow translations and modifications. The NoDerivatives licenses does not allow them.