2. Contributed Packages

Small (in size) contributions are included in the release. Among them we can cite:

STk-wtour: A didactic demo to learn STk written by Suresh Srinivas (ssriniva@cs.indiana.edu)
Stetris : A tetris game written by Harvey J. Stein (hjstein@math.huji.ac.il)
Queens: The famous 8 queens problem by Grant Edwards (grante@winternet.com)
Ttt: A 3-D Tic-Tac-Toe by Edin "Dino" Hodzic ehodzic@scu.edu

Complex contributions are kept in the ftp://kaolin.unice.fr/pub/Contrib directory. This directory contains also old code which should probably be updated to work with current STk release. Among the packages which can be found in this directory are:

EnvDraw: is a environment diagramming package which draws environment diagrams as taught in Abelson and Sussman's Structure and Interpretation of Computer Languages. It was written as an instructional tool for the CS61A course at the University of California at Berkeley. The environment diagrammer is a metacircular evaluator which draws procedures, environments, and box and pointer diagrams along with all the accompanying symbols and mutation. It includes a box and pointer diagrammer which handles circular list structures, cons cell mutation, and also will watch for modification of any symbols known to be pointing to drawn cells. The author of this very neat package is Josh MacDonald jmacd@po.EECS.Berkeley.EDU
WWW is a HTML browser which greatly enhances the hbrowse demo which is part of STk distribution. You should look at this package. Author: Harvey J. Stein hjstein@math.huji.ac.il
Nanocad is chemistery CAD program which allows you to create small molecules and to rotate them. The author of this package is Will Ware wware@world.std.com
...

Some packages are not in the kaolin Contrib directory:

A preemptive thread package can be found at ftp://ftp.cs.uoregon.edu/pub/lth/tasking-alpha2.tar.gz The uthor of this package is Lars Thomas Hansen lth@cs.uoregon.edu
A low level interface to the Postgres 95 Database can be found at http://www.webbuild.com/~rtoy/pgstk/http://www.webbuild.com/~rtoy/pgstk/ .
Tabula rasa is a system written by David Fox which use the STk interpreter (but not Tk).This package can be found at ?????. (TO BE COMPLETED)
spice package from Fritz.Heinrichmeyer@fernuni-hagen.de (I cannot find the reference)
...

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