By Sean Dineen
By Michael Field
By Andrew Baker
By James W. Anderson
By Juliusz Brzezinski
By Jeremy Gray
By Steven Holzner
By S. G. Hoggar (University of Glasgow)
By K. G. Binmore
By George B. Thomas, Ross L. Finney
By H. Takayasu
By David Clark, John Eric Jackson
By Michael Frame, Amelia Urry
By Stefan Hildebrandt, Anthony Tromba
By Kenneth Falconer (Professor of Pure Mathematics, University of St Andrews)
By Gareth A. Jones, David Singerman
By Bernard F. Schutz (Director)
By Sherman K. Stein, Anthony Barcellos
By Mauro C. Beltrametti, Ettore Carletti, Dionisio Gallarati, Francis Sullivan
By Euclid, Thomas L. Heath, Dana Densmore
By Alfred S. Posamentier, Ingmar Lehmann
By The Math Forum
By Livio, Mario
By Linzi Henry
By Nathan Jacobson
By Heinz-Otto Peitgen, Hartmut Jurgens, Dietmar Saupe