Re: FindRoot for the determinant of a matrix witha varying size
- To: mathgroup at smc.vnet.net
- Subject: [mg59961] Re: FindRoot for the determinant of a matrix witha varying size
- From: Bill Rowe <readnewsciv at earthlink.net>
- Date: Fri, 26 Aug 2005 04:54:01 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
On 8/25/05 at 6:33 AM, davidannetts at aapt.net.au (David Annetts) wrote: >Just because it _can_ be done, dosen't mean it should be. Consider >the innocuous table >Range[N[1/3, 16], N[9/3, 16], N[1/6, 16]] >Naively, we might expect this to return >Range[1/3, 9/3, 1/6] >but it dosen't, at least not under 5.0.1 Windows. I assume you really meant the naive expectation would be to return N[Range[1/3, 9/3, 1/6],16] since there should never be an expection Mathematica will return exact results from inexact input. Also, it should be true Range[N[1/3, 16], N[9/3, 16], N[1/6, 16]] == Most@N[Range[1/3, 9/3, 1/6],16] which happens since N[1/6,16 ] > 1/6 -- To reply via email subtract one hundred and four