Edwards Differential equations : computing and modeling / C. Henry Edwards, David E. Penney. - 4th.ed.. - Upper Saddle River Prentice Hall 2008. - xi, 575p. ill. 25cm Includes index. p. 571-575 ISBN: 9780136000389 Subjects--Topical Terms: Differential equations Dewey Class. No.: 515.35 EDW 2008