mscroggs.co.uk

mscroggs.co.uk

blog puzzles academic talks contact subscribe ↓ ☰ ↓

Comment

Comments

Comments in green were written by me. Comments in blue were not written by me.

2020-04-18

Would square cardboard work better than a rectangle

×1

×1

×1

×1

×1

2020-04-20

@no: yes, although rectangles work surprisingly well

Matthew
on /blog/30

×1

×1

×1

×1

Archive

Show me a random blog post

2025

Mar 2025

How to write a crossnumber

Jan 2025

Christmas (2024) is over
Friendly squares

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

Tags

people maths logs simultaneous equations chalkdust magazine live stream sport crochet cross stitch approximation game show probability logic fractals interpolation php realhats draughts puzzles numbers errors rhombicuboctahedron anscombe's quartet bots hats hexapawn accuracy manchester guest posts football convergence big internet math-off hyperbolic surfaces recursion cambridge speed ucl computational complexity flexagons preconditioning radio 4 logo binary geogebra standard deviation advent calendar london countdown martin gardner graph theory sorting books error bars matrix of cofactors pi bempp world cup manchester science festival braiding python games fonts gather town data matrices video games golden ratio exponential growth tennis matt parker coins final fantasy signorini conditions dataset datasaurus dozen reddit menace reuleaux polygons finite element method quadrilaterals latex weak imposition runge's phenomenon statistics stickers newcastle matrix of minors sobolev spaces crossnumber numerical analysis talking maths in public hannah fry curvature chess light machine learning oeis regular expressions bubble bobble news folding paper graphs zines electromagnetic field pac-man pythagoras platonic solids folding tube maps map projections mean plastic ratio palindromes noughts and crosses weather station wave scattering raspberry pi 24 hour maths inline code matrix multiplication crosswords friendly squares data visualisation squares nine men's morris trigonometry finite group london underground rugby probability inverse matrices asteroids dinosaurs gerry anderson fence posts pizza cutting misleading statistics royal baby christmas game of life go polynomials wool pascal's triangle mathsteroids crossnumbers a gamut of games royal institution youtube golden spiral javascript gaussian elimination craft boundary element methods harriss spiral dragon curves european cup triangles tmip frobel captain scarlet programming correlation mathslogicbot pi approximation day edinburgh christmas card arithmetic geometry determinants dates databet national lottery the aperiodical phd ternary bodmas sound chebyshev estimation mathsjam turtles stirling numbers propositional calculus kings

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2025