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Topic: Vector Projection Question in 3-Space
Replies: 95   Last Post: Nov 1, 2010 9:27 AM

 Messages: [ Previous | Next ]
 Wasell Posts: 11 Registered: 9/29/10
Re: Vector Projection Question in 3-Space
Posted: Oct 16, 2010 2:40 AM

In article <d9127be5-e7f3-44c9-a7f4-5a3e9751d889
>
> On Oct 15, 10:39 am, Arturo Magidin <magi...@member.ams.org> wrote:

{...]
> > A projection is a map that equals its square, T = T^2 (under
> > composition).

>
> Sorry, but your description is not a match for any of
> http://en.wikipedia.org/wiki/Projection_%28mathematics%29

[...]

From the page:

"In linear algebra, a linear transformation that remains unchanged
if applied twice (p(u) = p(p(u))), in other words, an idempotent
operator."

Date Subject Author
10/4/10 Datesfat Chicks
10/4/10 magidin@math.berkeley.edu
10/4/10 magidin@math.berkeley.edu
10/5/10 Datesfat Chicks
10/5/10 Datesfat Chicks
10/19/10 bacle
10/19/10 magidin@math.berkeley.edu
10/4/10 Gerry Myerson
10/4/10 magidin@math.berkeley.edu
10/5/10 Gerry Myerson
10/5/10 Tim Golden http://bandtech.com
10/5/10 magidin@math.berkeley.edu
10/14/10 Tim Golden http://bandtech.com
10/14/10 magidin@math.berkeley.edu
10/15/10 Tim Golden http://bandtech.com
10/15/10 magidin@math.berkeley.edu
10/15/10 Tim Golden http://bandtech.com
10/15/10 magidin@math.berkeley.edu
10/15/10 Virgil
10/16/10 Tim Golden http://bandtech.com
10/16/10 magidin@math.berkeley.edu
10/16/10 magidin@math.berkeley.edu
10/17/10 Tim Golden http://bandtech.com
10/17/10 magidin@math.berkeley.edu
10/17/10 Gerry Myerson
10/17/10 James Dolan
10/17/10 Arturo Magidin
10/17/10 James Dolan
10/17/10 magidin@math.berkeley.edu
10/17/10 magidin@math.berkeley.edu
10/17/10 James Dolan
10/18/10 Tim Golden http://bandtech.com
10/18/10 Tim Golden http://bandtech.com
10/18/10 magidin@math.berkeley.edu
10/18/10 magidin@math.berkeley.edu
10/17/10 magidin@math.berkeley.edu
10/19/10 Tim Golden http://bandtech.com
10/19/10 magidin@math.berkeley.edu
10/19/10 Tim Golden http://bandtech.com
10/19/10 Virgil
10/20/10 Tim Golden http://bandtech.com
10/20/10 Virgil
10/20/10 Brian Q. Hutchings
10/20/10 Ki Song
10/20/10 Tim Little
10/21/10 Tim Golden http://bandtech.com
10/21/10 magidin@math.berkeley.edu
10/16/10 Wasell
10/15/10 Virgil
10/18/10 Owen Jacobson
10/19/10 Tim Golden http://bandtech.com
10/19/10 magidin@math.berkeley.edu
10/19/10 Maarten Bergvelt
10/19/10 magidin@math.berkeley.edu
10/19/10 Owen Jacobson
10/19/10 Brian Q. Hutchings
10/20/10 Tim Golden http://bandtech.com
10/20/10 magidin@math.berkeley.edu
10/20/10 Virgil
10/21/10 Tim Golden http://bandtech.com
10/21/10 Virgil
10/22/10 Tim Golden http://bandtech.com
10/22/10 magidin@math.berkeley.edu
10/22/10 Tim Golden http://bandtech.com
10/22/10 magidin@math.berkeley.edu
10/22/10 Tim Golden http://bandtech.com
10/22/10 magidin@math.berkeley.edu
10/22/10 Virgil
10/22/10 Tim Golden http://bandtech.com
10/22/10 Virgil
10/22/10 jbriggs444@gmail.com
10/23/10 Tim Little
10/25/10 Tim Golden http://bandtech.com
10/22/10 Virgil
10/23/10 Tim Golden http://bandtech.com
10/23/10 Brian Q. Hutchings
10/24/10 Brian Q. Hutchings
10/25/10 Tim Golden http://bandtech.com
10/25/10 Virgil
10/25/10 Maarten Bergvelt
10/26/10 Tim Golden http://bandtech.com
10/26/10 Maarten Bergvelt
10/27/10 Tim Golden http://bandtech.com
10/27/10 Virgil
10/27/10 Tim Golden http://bandtech.com
10/28/10 Tim Little
10/27/10 Maarten Bergvelt
10/26/10 Maarten Bergvelt
10/27/10 Maarten Bergvelt
10/28/10 Tim Golden http://bandtech.com
10/28/10 Maarten Bergvelt
10/29/10 Tim Golden http://bandtech.com
10/29/10 Maarten Bergvelt
11/1/10 Tim Golden http://bandtech.com
10/19/10 Virgil
10/5/10 Zdislav V. Kovarik