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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I have written several papers relating to Tcl:

    * "Generating test programs using TestMake" - presented at the Second European Tcl/Tk User Meeting
    * "Doing mathematics with Tcl" - presented at the Third European Tcl/Tk User Meeting
    * "Combining Fortran and scripting languages" - published in the ACM Fortran Forum [http://www.fortran.com/fortran/acm_ff.html], Volume 21, Number 3, December 2002.
    * "Creative use of the text widget" - presented at the Fourth European Tcl/Tk User Meeting

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Current mega pet project: The young programmers' project, intended to produce a booklet or book for young people or unexperienced adults to learn programming [http://tcl.projectforum.com/young]
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Just to remind myself of the pages I have initiated (in desperate need of an update ...):

   * [A little business logic]
   * [A little graphical pointer]
   * [A poor mans GUI]
   * [A simple slideshow]
   * [Agents, sprites and young programmers]
   * [Cellular automata]
   * [Clock and daylight saving time corrections]
   * [Complex data structures]
   * [Composing Curves]
   * [Creating an animated display, part 2]
   * [Creating an animated display]
   * [Displaying tables]
   * [Finite state machines]
   * [Garbage collection]
   * [Generating random strings]
   * [Genetic Algorithms]
   * [Geometry]
   * [Integral equations]
   * [Managing Fortran programs]
   * [Manipulating infinite sets in Tcl]
   * [Manipulating sets in Tcl]
   * [Mathematical workbench]
   * [Non-ASCII characters]
   * [Passing arrays of data]
   * [Polynoms and power series]
   * [Recursive functions]
   * [Simple data plotting example]
   * [Super-exponential growth in text manipulation]
   * [Taking the Nth power]
   * [Three-dimensional shapes]











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