We have online the data files used in the text Exploring Differential
Equations via Graphics and Data, by David Lomen and David Lovelock
(Wiley 1996), and the
Arizona
Mathematical Software program Twiddle. They are listed here
by properties. The data sets can be seen graphically and then downloaded individually, or you can download all the
datafiles at once in the form of a
tar file or a
zip file.