#random_walk
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athalelab.bsky.social
Teaching #random_walk is my favourite section in #cellularbiophysics with Gamows drunkard walk. As a seque to #polymers
November 11, 2024 at 2:36 PM
dmytroshapoval.bsky.social
Pólya’s theorem reveals how random walks behave -- in 1D and 2D a walker almost surely returns home infinitely often but in 3D and higher there’s a chance they wander off forever.

#monte_carlo_simulation #random_walk
May 29, 2025 at 8:04 PM
dragonbyte.ca
Not me simulating random walks using Turtle Graphics...
A simulated random walk in two dimensions. It is a visualization of a set-sized stride in any of the four cardinal directions, (pseudo-) randomly determined. Each stride has been randomly coloured, and there are 250 strides in this simulation. A grid begins to appear as the 'walker' randomly turns and strides down a path it has already trodden. More info on random walks: https://en.wikipedia.org/wiki/Random_walk
October 31, 2024 at 5:56 PM
epsteinweb.bsky.social
EFTA02339088.jpg
#epsteinweb #efta02339088
https://epsteinweb.org
Available in the iOS app store now!
https://apps.apple.com/us/app/epstein-web/id6758880661
EFTA02339088 | EFTA02339088 From: Sent: To: Subject: Lawrence Krauss Friday, August 4, 2017 9:55 PM Jeffrey E. randomness and power law I was going to derive the power law relation for a random =alk for you here, but in fact this link has all the relevant math =nyway. https://en.wikipedia.org/wiki/Random_walk Lawrence M. Krauss Director, The Origins Project at ASU Co-Director, Cosmology Initiative Foundation =rofessor School of Earth =amp; Space Exploration and Physics Department Arizona State University, P.O. Box =71404, Tempe, AZ 85287-1404 Research 1 EFTA_R1_01302013 EFTA02339088
April 5, 2026 at 6:21 PM
chaosmagex.bsky.social
And implementing this experimental new feature nearly broke me, because of the sheer colossal scale of the Node Tree that I'm working with. 🫠 I certainly admire the mental fortitude of @jas9r.bsky.social to keep their own tool as just a single Node Group & endure all the Reroutes that entails. 🟢-→-🟢
Half of the Absolutely Colossal Node Tree within the Random Walk Node Group, which is essentially a Geometry Nodes re-implementation of the Python BMesh random_walk utility function that lies at the core of BlenderGuppy's Random Flow Extension for Blender. This half showcases the Main Repeat Zone Loop, inside of which are the SIX Solver Algorithms, the Notch Adding Algorithm, the Disjointed Cell Elimination Algorithm, and the Sharp Edge Wrapping Algorithm. Half of the Absolutely Colossal Node Tree within the Random Walk Node Group, which is essentially a Geometry Nodes re-implementation of the Python BMesh random_walk utility function that lies at the core of BlenderGuppy's Random Flow Extension for Blender. This half showcases the latter half of the Main Repeat Zone Loop, showing within it the Notch Adding Algorithm, the Disjointed Cell Elimination Algorithm, and the Sharp Edge Wrapping Algorithm. Outside of this Loop is the Final Merger Algorithm and the Mark Sharp Algorithm, and the Debugging Algorithms within the Yellow Frame, for adding the Cell Colors, Edge Outlines and Informational Text.
December 19, 2024 at 4:25 AM
chaosmagex.bsky.social
After around 12 days, I've finally implemented in #Blender #GeometryNodes all the functionality of Python BMesh random_walk utility function at the core of @blenderguppy.bsky.social's Random Flow Extension. I need multiple screenshots to show how huge the Node Tree got. 🫠 #blender3d #b3d #geonodes
Just one third of the Colossal Node Tree within my Random Walk Node Group, designed to emulate in Blender 3D's Geometry Nodes the Python BMesh random_walk utility function at the core of BlenderGuppy's Random Flow Extension for Blender 3D. This code actually already transcends the original function in a few ways. The Blue Frames contain code for preventing or eliminating Disjointed Cells, in which parts of a Cell aren't joined to the other parts by at least one edge. The Green Frames contain code for altering the directions in which the Square Solver traverses the original mesh. Just one third of the Colossal Node Tree within my Random Walk Node Group, designed to emulate in Blender 3D's Geometry Nodes the Python BMesh random_walk utility function at the core of BlenderGuppy's Random Flow Extension for Blender 3D. This code actually already transcends the original function in a few ways. The Blue Frames contain code for preventing or eliminating Disjointed Cells, in which parts of a Cell aren't joined to the other parts by at least one edge. The Green Frames contain code for altering the directions in which the Square Solver traverses the original mesh. The Yellow Frames contain code for colorizing the resulting Cells, as well as adding more Geometry to show more information about the result, including the Cell ID Numbers and the Cell Edges. Just one third of the Colossal Node Tree within my Random Walk Node Group, designed to emulate in Blender 3D's Geometry Nodes the Python BMesh random_walk utility function at the core of BlenderGuppy's Random Flow Extension for Blender 3D. This code actually already transcends the original function in a few ways. The Blue Frames contain code for preventing or eliminating Disjointed Cells, in which parts of a Cell aren't joined to the other parts by at least one edge. The Green Frames contain code for altering the directions in which the Square Solver traverses the original mesh. The Yellow Frames contain code for colorizing the resulting Cells, as well as adding more Geometry to show more information about the result, including the Cell ID Numbers and the Cell Edges.
December 17, 2024 at 5:35 AM
garrisonlovely.bsky.social
Props to Emma Hoes and Fabrizio Gilardi for the work!

x.com/EmmaHoes93/...

Also to Arvind Narayanan for this acknowledgement that he was wrong about this:
x.com/random_walk...
April 18, 2025 at 8:01 PM