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Email me if you are interested in any of the following. This is one of the most *not* up-to-date pages of my site.

  • RBanking is an offline banking tool that adds the power of R, a free software environment for statistical computing and graphics, to the banking data of the user.
  • Traplas, a Transport Planning simulator, written in C++. For my research project, I implemented a simulator that can generate, plan, monitor and execute transportation orders. It can graphically display the final plans of the agents as well as lots of performance indicators. The set-up tried to minimize the amount of effort to plugin new type of agents using different techniques. Later, an external 3D visualization toolkit, called TraplasViz, was added.
  • Because Traplas uses the Pamela Run-Time-Library and I made several important improvements (stack overflow security, better compiler hacks, pthread support, etc.), I backported these changes to Pamela RTL.
  • In May 2006 I joined the aMSN developers team.
  • I have solved a wild variant of chess, known as Little-game. Rules are exactly like chess, only the initial position is much more easy (KPP vs kpp). Play it online against my engine here.
  • I have solved a Fox and Geese variant "The Wolf and the Goats" here. The game is played on a draughts board.
  • A Scrolling Lyrics plugin for WinAmp, available here at the download section.
  • An algorithm for a transportation problem. This algorithm uses a transformation to the Satisfiability problem and solves that instance with a satisfiability solver.
  • Fitch JOJ - A Java implementation of a logic based deduction system. This program can create truth tables, proof trees, Fitch diagrams and has a user-interface that allows users to practice creating Fitch diagrams. I created this program together with D.J. Broekens in the third year of my study (1997).
  • TUurlijk - An improved version of Fitch JOJ. This implementation is written in C++. It is much faster and less buggier and has an ever friendlier user-interface.
  • BOP - A user-friendly interface to the system of Fitch. Users can try to build proofs themselves, or ask steps, hints and full proofs to a prover like TUurlijk. It's online here!
  • A Lex/Yacc parser for logical formula's.
  • A Turing Machine simulator written in JavaScript.
  • Chess programs (C/Java) and a draughts game (Java, Dutch variant).
  • A Java Safety System for buildings. This Object Oriented program can lock and unlock doors and raise alarm in case of burglary or fire.
  • A toy Java profiler. This program can be used to test the efficiency of Java programs.
  • The ZigZag algorithm. Starting with two horizontal lines (a zig and a zag) of length 100 (unit) and len (variable) respectively, we start zigzagging by making angles with the positive x-axis of k alpha (for a zig, where k is the number of iterations) and k beta (for a zag). The interesting thing is that the resulting figure always closes up, for every value of alpha, beta and len. I also made an option to animate (entering an interval for the variables) and an option to let the figures build up slowly. Download windows executable, download the source.