Using* the most cursed #ALevelMaths Formula in #MathsToday *absolutely not using but fun as a hook for Radians Sector lesson with Y12

Wow. it must feel terrible when someone takes something you made and uses it without permission or payment

This week's #Fiddler puzzle is a random walk: From (k), you hop to (k-1) with probability 1/k and hop to (k+1) otherwise. If you start at (2), what is the probability you eventually hop to (1)? @xaqwg.bsky.social I wrote a short tutorial here: laurentlessard.com/bookproofs/c...

This week's #Fiddler: Assign distinct prime numbers to the vertices of a dodecahedron so the sum of the vertices of each face sum to 2025. I modeled this as an integer linear program. Here is one possible solution. @xaqwg.bsky.social My write-up: laurentlessard.com/bookproofs/2...

This week's #Fiddler: what is the minimum-energy way to pack 9 particles in a unit square, where energy is measured as the sum of 1/dist over all pairs of particles? Turns out it's NOT a regular 3x3 lattice! @xaqwg.bsky.social write-up: laurentlessard.com/bookproofs/p...