The IDEA site is undergoing renovations, in conjunction with the renewed
activities of CODEE (as described below). Thank you for your patience.
CODEE, the Consortium for Differential Equations Experiments, has been
revitalized. CODEE was quite active in the 1990s in spreading differential
equations activities, information, and software tools. In particular,
CODEE formed the organization for the ODE Architect software. Recently,
an NSF project headed by Darryl Young of Harvey Mudd College has
reinvigorated CODEE.