- #1

kyle_soule

- 240

- 1

The whole subject of multipole algorithms is infinitely unclear to me, so literally any information will be helpful.

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter kyle_soule
- Start date

- #1

kyle_soule

- 240

- 1

The whole subject of multipole algorithms is infinitely unclear to me, so literally any information will be helpful.

- #2

Stranger

- 50

- 0

if this can help...

http://www-aix.gsi.de/~weick/gico/gicohow/node17.html [Broken]

http://mad.home.cern.ch/mad/mad/mad9/conversion/node4.html [Broken]

http://www.mpip-mainz.mpg.de/~gelessus/pubs/pub4.html [Broken]

http://www-aix.gsi.de/~weick/gico/gicohow/node17.html [Broken]

http://mad.home.cern.ch/mad/mad/mad9/conversion/node4.html [Broken]

http://www.mpip-mainz.mpg.de/~gelessus/pubs/pub4.html [Broken]

Last edited by a moderator:

- #3

Mike H

- 506

- 14

As Sulaiman already provided some good links on the basic idea of what a multipole is, here's a bit of the rest...

Multipole algorithms/methods generally refer to the procedures used to solve problems where you have to find the long-range Coulombic forces from a group of charges via a multipole expansion of the potential. In a more general sense, it's a way to determine pairwise interactions by essentially taking advantage of the symmetry of the problem, dividing the space into grids, and then first calculating within each grid and more or less summing up their subtotals. So, after a fashion, instead of calculating each and every pairwise interaction of a system, you only calculate the pairwise interactions explicitly within the grid so as to save yourself time and CPU/memory capacity.

Added after edit: Sorry about that, Sulaiman. :) I've fixed it now.

Multipole algorithms/methods generally refer to the procedures used to solve problems where you have to find the long-range Coulombic forces from a group of charges via a multipole expansion of the potential. In a more general sense, it's a way to determine pairwise interactions by essentially taking advantage of the symmetry of the problem, dividing the space into grids, and then first calculating within each grid and more or less summing up their subtotals. So, after a fashion, instead of calculating each and every pairwise interaction of a system, you only calculate the pairwise interactions explicitly within the grid so as to save yourself time and CPU/memory capacity.

Added after edit: Sorry about that, Sulaiman. :) I've fixed it now.

Last edited:

- #4

Loren Booda

- 3,119

- 4

- #5

Stranger

- 50

- 0

As Stranger already

Can you please call me Sulaiman...thanks

- #6

kyle_soule

- 240

- 1

Originally posted by Loren Booda

I was actually wondering what a multipole was because of gravitons Funny you would use that example.

Share:

- Replies
- 4

- Views
- 375

- Last Post

- Replies
- 6

- Views
- 1K

- Last Post

- Replies
- 7

- Views
- 2K

- Last Post

- Replies
- 2

- Views
- 1K

- Last Post

- Replies
- 7

- Views
- 1K

- Last Post

- Replies
- 29

- Views
- 1K

- Replies
- 22

- Views
- 1K

- Replies
- 12

- Views
- 569

- Replies
- 10

- Views
- 2K

- Replies
- 1

- Views
- 419