Currently published by Perseus Books. To order your very own copy, see an order form
Here are some solutions and/or hints that did not make it into the second edition in a .pdf file.
Would you like to make some MONEY?
I will pay $1 for each error (that I do not already know about) found in the revised Applied Math Book. Since the book has already gone to the publishers, any errors that you find will be corrected in subsequent printings. The list that I know about is in this .pdf file