Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: Notesfiles $Revision: 1.7.0.8 $; site uiucdcsp Path: utzoo!watmath!clyde!cbosgd!ihnp4!inuxc!pur-ee!uiucdcsp!hall From: hall@uiucdcsp.CS.UIUC.EDU Newsgroups: net.math Subject: Re: cubic roots Message-ID: <9600021@uiucdcsp> Date: Thu, 17-Oct-85 16:28:00 EDT Article-I.D.: uiucdcsp.9600021 Posted: Thu Oct 17 16:28:00 1985 Date-Received: Mon, 21-Oct-85 03:52:21 EDT References: <1798@hao.UUCP> Lines: 8 Nf-ID: #R:hao.UUCP:-179800:uiucdcsp:9600021:000:170 Nf-From: uiucdcsp.CS.UIUC.EDU!hall Oct 17 15:28:00 1985 A simple,reliable method for a cubic with real coefficients is to arrange for a/the real root to lie in (0,1)-by using x:=-x and x:=1/x -and then use bisection. . q - w