Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site watmath.UUCP Path: utzoo!watmath!ljdickey From: ljdickey@watmath.UUCP Newsgroups: net.math Subject: re does minus one equal one Message-ID: <5779@watmath.UUCP> Date: Thu, 15-Sep-83 09:40:33 EDT Article-I.D.: watmath.5779 Posted: Thu Sep 15 09:40:33 1983 Date-Received: Fri, 16-Sep-83 00:50:44 EDT Sender: ljdickey@watmath.UUCP Organization: U of Waterloo, Ontario Lines: 23 s the square root of 17), not just x=sqrt(17). The point is that the idea of "plus or minus", is NOT built into the function SQRT, the +/- idea is something that has to be expressed separately. The values of the square root function are non-negetive. -- Lee Dickey, University of Waterloo. (ljdickey@watmath.UUCP) ...!allegra!watmath!ljdickey ...!ucbvax/decvax!watmath!ljdickey