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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2025