Hello everyone, Due to the intensive work on zQuest, I was able to finish a lot of work. Since some of the development for zQuest can be split into several small Products, I decided to take today off and do that. So three products were born: ** MatLab DA and Method ** This product allows you to "connect" to the MatLab Kernel and then execute mathematical expressions (in MatLab syntax). Each statement is separated by a new line. Some of the nicer features are actually in the MatLab Connection component. It keeps a pool (size is specified by user) of connections to the MatLab Kernel. When a query is executed the used connection is locked (and afterwards released) to provide a maximally optimized response time. Originally Zope and PyMat (The module used to connect to MatLab) did not like each other, since Zope would regularly reload modules causing the PyMat module to produce a segmentation fault. Thanks to Jason Orendorff's "DestructionListener" idea I was able to catch the reload occurrences and handle them gracefully. URL: http://demo.iuveno-net.de/iuveno/Products/MatLabDA ** Latex Method ** Using the Latex Method one can compile math-mode Latex code into an image that is displayed. The LatexMethod uses the Image class as base, so that the same API applies. The Latex Method is very flexible and supports the AMS (American Mathematical Society) Latex Extensions. It might seem that there are many requirements associated with this product, but I developed on a standard RedHat Linux machine and I had no problems. All tools (Latex, Ghostview, small conversion tools) were all there by default. URL: http://demo.iuveno-net.de/iuveno/Products/LatexMethod ** Graph Method ** The Graph Method is similar to the Latex Method in the sense that it creates an image from a given piece of code. In fact, the object provides a nice graphing environment based on PIL (Python Imaging Library). On top of PIL there are several other features. For educational purposes it is often nice to have "moving pictures", so I added Animation support to allow animated GIFs (using GIFSicle, which you will need to install). Furthermore there are a couple of very useful components that can be used to quickly generate nice results: Arrow, Vector, Grid, Axis, Coordinate System, Data Point, Function Curve and Random Data Curve. A complete API reference can be found in the Appendix of the zQuest Users manual, which can be downloaded from http://demo.iuveno-net.de/iuveno/Products/ZQuest/Documentation. URL: http://demo.iuveno-net.de/iuveno/Products/LatexMethod I hope that you will find one or the other product useful and will try it. Since they all have outside dependencies, I would like to hear about your experiences. As always, I am thankful to any comments, suggestions and criticism. Regards, Stephan -- Stephan Richter CBU - Physics and Chemistry Student Web2k - Web Design/Development & Technical Project Management