Ordinary Differential Equations, 4th Edition

Rating:
Summary: Good text but watch for errors
Review: This is a good text for a course in ODE after the computational course is completed. This book covers many topics in ODE, but be careful and watch for errors; especially near the end of the text. Most of the errors come in the excercises. For instance: you are asked to show that "every finite sequence of eigenfunctions of a S-L system is bounded". Duh! This is trivial until one realizes that every infinite sequence is also bounded.