News for hackers. Stuff that matters.

A comment on The Math of the Sandpile.

Re:The Math of the Sandpile by randy5 on Saturday October 09, 2021 @02:17PM (#28811973)
It's an unrealistic model of diffusion; 4 grains of sand in a vertical stack do not spread out leaving 0 at the node where the stack used to be.
[ Parent | on HN ]
Re:The Math of the Sandpile by Bjartr on Saturday October 09, 2021 @05:02PM (#28813277)
The article acknowledges this

< ...real piles of sand don’t generate this kind of spontaneous structure. The abelian sandpile model doesn’t even try to capture the behavior of actual physical materials

[ Parent | on HN ]
Re:The Math of the Sandpile by solids on Saturday October 09, 2021 @04:40PM (#28813099)
Nor even spread to a neighbor of the same height, but that’s ok, is just an idea.
[ Parent | on HN ]
Re:The Math of the Sandpile by deviner on Saturday October 09, 2021 @10:44PM (#28815333)
it's extremely fast, and result is quite good too. It was used quite heavily in the upcoming dune for ex
[ Parent | on HN ]