# User:Martin Kraus

de-N Dieser Benutzer spricht Deutsch als Muttersprache.
en-3 This user can read and write fluently in English.
es-1 Este usuario puede contribuir con un nivel básico de español.
 This user believes in the value of print versions of Wikibooks.
 This user likes wikibooklets for audiobooks and podcasts.

### Activities

#### Canvas 2D Web Apps

I've been thinking about how to teach programming web apps for some years. What is the best technology? What are the best tools? What is the best literature? I'm still not sure; thus, I'm writing a wikibook to try one approach. So far, I'm quite happy with the results: the book uses JavaScript and the HTML Canvas 2D Context and shows how to use this for a combination of automata-based programming and reactive programming. The resulting web apps can be used in desktop and mobile web browsers as well as in iBooks.

#### Cg Programming

After having spent quite a bit of time on the GLSL wikibook, I adapted it to Cg (and slightly extended it); mainly in order to provide students with more suitable learning material.

#### GLSL Programming

I've written a wikibook on GLSL (OpenGL Shading Language) programming to support a course that I've been teaching in October 2011. One of the basic ideas is to introduce learners to the way GLSL is used in context, in particular in Unity, Blender, and OpenGL+GLUT. This could be extended to WebGL, Android, and iOS. Notable feature: section numbers in the PDF version.

#### German

I've been working a bit on reorganizing German, making the Level II levels accessible again and trying to integrate the exercises in the Level I lessons. There is still a lot of work to do on this book but I'm not really finding the time or motivation to do it.

#### Spanish by Choice

I'm the main author of Spanish by Choice, a collection of wikibooklets for everyone who wants to learn Spanish. With this wikibook I've also been trying to better understand the possibilities of wikibooks in general. There could be a lot of stuff done with the Novelas Cortas because there are excellent open-source audio recordings available but I'm not quite sure how to do it with reasonable effort.

 Here are some open Spanish by Choice tasks: SHORT TERM: currently none MIDDLE TERM: Edit: change copyright notice hyperlinks for notes in Spanish by Choice/Novelas Cortas add links to some dictionaries in the vocabulary list of Spanish by Choice/Novelas Cortas Add: PDF version of Spanish by Choice/Novelas Cortas LONG TERM: Add: translation of Spanish by Choice/Novelas Cortas Feel free to edit this list or discuss these tasks.

### My Sandbox

${\ddot{d}}_{i}\mathrm{=}{\mathrm{\sum }}_{j\mathrm{=}1}^{n}{a}_{\mathit{ij}}{g}_{j}+{\tilde{b}}_{i}$

 a b c d e f

this is printonly text

this is noprint text

this is noinclude text

 Figure 1: Hover the image