By Nicholas Strange
By Frank Bowman
By Stanislaw H. Zak (Professor Electrical and Computer Engineering, Professor Electrical and Computer Engineering, Purdue University)
By Charles Dixon
By Jerrold Marsden, Michael J. Hoffman, Michael J. Hoffman (California State University, Los Angeles, USA)
By Gareth A. Jones, David Singerman
By Paul Abbott, Hugh Neill
By A. Francis
By Sherman K. Stein, Anthony Barcellos
By Joseph Bak, Donald J. Newman
By Open University Course Team
By Peter F. Cohn, Joan K. Cohn
By Rainville, Earl D., Bedient, P.E.
By Richard Bronson, Gabriel Costa
By V.I. Arnold, Richard A. Silverman
By Allan M. Krall
By Collins GCSE
By Mark Rowland, Rowland, Mark
By Ross L. Finney, George B. Thomas
By Dominic Welsh (Fellow and Tutor in Mathematics, Fellow and Tutor in Mathematics, Merton College, Oxford)
By H. A. Priestley
By Paul DuChateau, D. W. Zachmann
By Smital
By J. F. Traub (Columbia University, New York), A. G. Werschulz (Fordham University and Columbia University
By Marcus Pivato (Associate Professor, Trent University, Peterborough, Ontario)
By Edwin F Beckenbach, R Bellman
By J. Jost (Max Planck Institute for Mathematics in Science, Leipzig, Germany)
By S. Shankar Sastry