Therefore, Heron of Alexandria (c. AD 100) obtained the quantity sqrt(-63), and Girolamo Cardan (1545) wrote 40 = (5 + sqrt(-15))(5 - sqrt(-15)).

These numbers were considered to be quite meaningless, and the term

This Web Page Sums It Up! Zeuter Development Corporation

Box 225, Parry Sound, Ontario, CANADA P2A 2X3 Tel/FAX (705) 746-4625

Copyright (C) Zeuter Development Corporation, 1996. All rights reserved.