Pendulum reference request

Question

I found on the net the following excerpt Could someone help me giving the title, author(s) of this book?

Answer 1

ODE Architect Companion, by CODEE (Consortium for ODE Experiments) / John Hubbard and Beverly West. Published by Wiley.

This is a book that comes with the software package "ODE Architect". It's a pretty old software package, though (the most recent edition was released c. 1999, I believe). Here's a link to its page on the CODEE website: link.

Answer 2

A Google Books search for "the pendulum and its friends" finds ODE Architect Companion