TEXTBOOKS in MATHEMATICS
ORDINARY
DIFFERENTIAl
EQUATIONS
APPiications, Models, and Computing
Charles E. Roberts, Jr.
Indiana State Universitv
Terre Haute, U.S.A.~ CRC Press
V Taylo r & Francis Group
Boca Raton London New York
CRC Press is an imprint of the
Taylor & Francis Group an informa business
A CHAPMAN & HALL BOOK