00529pamaa2200169 4500 0000012485 20090916090000.0 0133820947 515.35 EDW QA371 EDW 1996 Edwards Differential equations and boundary value problems : computing and modeling C.H. Edwards and David E. Penney. New Jersey: Prentice Hall, 1996. xiii, 717p.: 24cm. Differential equations Boundary value problems Penney, David E.