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Re: Mathematica v5 versus v6

• To: mathgroup at smc.vnet.net
• Subject: [mg80103] Re: Mathematica v5 versus v6
• From: David Bailey <dave at Remove_Thisdbailey.co.uk>
• Date: Sun, 12 Aug 2007 07:25:21 -0400 (EDT)
• References: <f9jjnc$2i8$1@smc.vnet.net>

Jon wrote:
> Hi
> 
> I have found that there are some simple problems which can be done quickly in v5 but the new v6 seemingly cannot.
> 
> For example I am presently doing some work which requires the calculation of the Rank of an 8 by 8 matrix. Using my notebook, 1Gb RAM and 1.73GHz with v5.1, I get the answer in a few seconds. When I installed v6 and ran the same nb file I never got an answer even after running for 1 hour.
> 
> Is there a bug in v6?
> 
> If others are also running v6 I would be interested in getting in touch to see if other users have the same experience. If you are running on a 64 bit machine I would really like to see if that solves the problem and can give  an answer with v6.
> 
> Any comments are very welcome!
> 
> Thanks
> 
> Jon
> 
Why not post a specific example in InputForm.

David Bailey
http://www.dbaileyconsultancy.co.uk