The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » sci.math.* » sci.math

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Calculating matrix permanent
Replies: 9   Last Post: Feb 4, 2013 4:29 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Herman Rubin

Posts: 399
Registered: 2/4/10
Re: Calculating matrix permanent
Posted: Feb 1, 2013 3:18 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

On 2013-02-01, J.B. Wood <> wrote:
> On 01/26/2013 11:09 AM, Mike Terry wrote:

>> I'd never heard of the permanent before, but checking Wickipedia it seems
>> it's defined just like the determinant, but with all plus signs. So in your
>> example:


> Hello, and that's the problem with folks who rely solely on Wiki for
> info. Someone invents a term that's not in common usage or in
> peer-reviewed papers or textbooks, posts it on Wiki, and everyone thinks
> it's been around since the time of Greek mathematicians. Sometimes you
> just gotta get up off your butt and go to the public/university library
> or dust off one of your college math textbooks (assuming you kept them).
> Sincerely,

Matrix permanent has been around a lot longer than that; I
do not know who invented it.

Unfortunately, it is not as easy to compute as the determinant,
and it does not seem to have any geometric meaning, as the
determinant has. Its computation is known to be NP complete.

This address is for information only. I do not claim that these views
are those of the Statistics Department or of Purdue University.
Herman Rubin, Department of Statistics, Purdue University Phone: (765)494-6054 FAX: (765)494-0558

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.