Re: Tr vs Total
- To: mathgroup at smc.vnet.net
- Subject: [mg49351] Re: [mg49346] Tr vs Total
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Fri, 16 Jul 2004 06:06:33 -0400 (EDT)
- References: <200407151100.HAA11171@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
On 15 Jul 2004, at 20:00, Daniel Reeves wrote:
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> Tr seems to have a problem with big lists. Anyone know why the
> following
> 2 expressions don't yield the same result?
>
> Tr[Table[8000000, {269}]]
>
> Total[Table[8000000, {269}]]
>
> (they do if you make either of those constants smaller)
>
>
> --
> http://ai.eecs.umich.edu/people/dreeves - - google://"Daniel Reeves"
>
>
I would say its a bug involving Tr and packed arrays:
Tr[Developer`FromPackedArray[Table[8000000, {269}]]]
2152000000
Andrzej Kozlowski
Chiba, Japan
http://www.mimuw.edu.pl/~akoz/
- References:
- Tr vs Total
- From: Daniel Reeves <dreeves@umich.edu>
- Tr vs Total