Re: a bug in Det of complex matrix - Mathematica 5
- To: mathgroup at smc.vnet.net
- Subject: [mg45906] Re: [mg45879] a bug in Det of complex matrix - Mathematica 5
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Thu, 29 Jan 2004 05:34:59 -0500 (EST)
- Organization: Mathematics & Statistics, Univ. of Mass./Amherst
- References: <200401281019.FAA18522@smc.vnet.net>
- Reply-to: murray at math.umass.edu
- Sender: owner-wri-mathgroup at wolfram.com
In Mathematica 5.0.1 it's OK: mat = {{-1., 1. - 1. I}, {-1., -1. I}}; Det[mat] 1. + 0.*I Petr Kujan wrote: > In Mathematica 5.0: > > (* ERROR *) > mat = {{-1., 1.- 1. I}, {-1., -1. I}}; > Det[mat] > > (* Out[1]= -1. + 1. I *) > > > (* CORRECT *) > rmat = Rationalize[mat]; > Det[rmat] > > (* Out[2]= 1 *) > > ------- > Petr > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305
- References:
- a bug in Det of complex matrix - Mathematica 5
- From: Petr Kujan <kujanp@fel.cvut.cz>
- a bug in Det of complex matrix - Mathematica 5