Re: a bug in Det of complex matrix - Mathematica 5
- To: mathgroup at smc.vnet.net
- Subject: [mg45888] Re: a bug in Det of complex matrix - Mathematica 5
- From: bobhanlon at aol.com (Bob Hanlon)
- Date: Thu, 29 Jan 2004 05:34:33 -0500 (EST)
- References: <bv83db$ibs$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
There is no problem on my Mac
$Version
5.0 for Mac OS X (November 19, 2003)
mat={{-1.,1.-1. I},{-1.,-1. I}};
Det[mat]
1. + 0.*I
%//Chop
1.
rmat=Rationalize[mat];
Det[rmat]
1
Bob Hanlon
In article <bv83db$ibs$1 at smc.vnet.net>, Petr Kujan <kujanp at fel.cvut.cz> 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 *)