EcoCybernetics Program by Dave McShaffrey

Here are a few notes from the author's web page regarding the program he has written.
  1. All software is copyrighted by Dave McShaffrey
  2. It may be used without charge for educational use only.  Any commercial users should contact Dave McShaffrey regarding donations to Marietta College for the right to use the software in a commercial setting.
  3. My provost expects me to occasionally teach classes.  This software works with some acceptable bugs on our equipment.  It may not work on yours, and you may find the bugs unacceptable.  I don't have time to debug the software, but I would appreciate hearing about the bugs.  Use the software at your own risk.
  4. All of the software should run on a machine running Microsoft windows version  3.x with a color monitor of at least 640x480 resolution.  For your convenience, I have placed some of the .DLL and .VBX files needed on our server.  Your machine may already have some of these files.  They should be placed in the \windows  directory of your computer.  Microsoft says it's OK to distribute these files.
Note: The transfer of program files can be affected by the way that web browsers and web servers are configured. Sometimes your browser will try to display these files as text (showing gibberish on your display) instead of saving them to a file on your computer. In that case you can force your browser to save the file by holding down the shift key while you click on the program name with your mouse. Alternately, after you click on the name of the program, you can explicitly tell your browser to save the file it has just collected (using Netscape, with the "Save" item under the "File" menu item).

After you have collected the program file eco.exe, run the program. You might want to do this from an empty directory. The file eco.exe is a self-extracting zip file that will expand into several other files including the actual EcoCybernetics program (called ecocyb.exe) together with other help files and the .DLL and .VBX files mentioned above. These files can all be stored together in one directory.

Ecocyb - Here's the program for modeling of population growth (exponential, log, age classes), Daisyworld simulation, natural selection, Reynolds number, chaos, predator-prey, competition.
Use of Computers in Biology - Dave McShaffrey's modeling page