Just a short description of my professional activities and background (I felt obliged having participated on the newsgroup and the Wiki after several months):

   * By education I am a physical engineer (a title not well known in Anglosaxon countries, but that is the translation from the Dutch).

   * I have been working at WL | Delft Hydraulics for a good many years now, first as a project engineer working on water quality modelling, later on as a computer scientist (well, sort of), working on user-interfaces and tools for our consulting activities. 

   * I "discovered" Tcl/Tk when reading a famous book by Boris Beizer ([BOOK Software Testing Techniques]), and later on my attention was drawn to it again in connection to a testing tool (automated GUI testing). It was simply the tool I had been looking for. For all kinds of purposes: testing, manipulating files, boring stuff that I used to do with UNIX shell scripts or DOS batch files and so on. 

   * My interests: Fortran as a computational language, Tcl as a language for almost anything else and even a bit of numerics if I can manage it, testing techniques (although I should listen to my own advocacy at times :-).

Email: mailto:Arjen.Markus@wldelft.nl

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Just to remind myself of the pages I have initiated:

   * [A poor mans GUI]
   * [A simple slideshow]
   * [Cellular automata]
   * [Complex data structures]
   * [Composing Curves]
   * [Creating an animated display]
   * [Creating an animated display, part 2]
   * [Displaying tables]
   * [Finite state machines]
   * [Garbage collection]
   * [Generating random strings]
   * [Genetic Algorithms]
   * [Geometry]
   * [Managing Fortran programs]
   * [Manipulating infinite sets in Tcl]
   * [Manipulating sets in Tcl]
   * [Mathematical workbench]
   * [Non-ASCII characters]
   * [Passing arrays of data]
   * [Recursive functions]
   * [Simple data plotting example]
   * [Super-exponential growth in text manipulation]
   * [Three-dimensional shapes]

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