Re: a bug in Det of complex matrix - Mathematica 5
- To: mathgroup at smc.vnet.net
- Subject: [mg45927] Re: a bug in Det of complex matrix - Mathematica 5
- From: "Dr. Stefan P. Müller" <stefan.mueller at uni-essen.de>
- Date: Thu, 29 Jan 2004 05:36:58 -0500 (EST)
- References: <bv83db$ibs$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
appears to be fixed in 5.0.1 (Mac OS X):
1.+0. I
Stefan
In article <bv83db$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 *)
>
> -------
> Petr
>