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.

2021-09-27

@Dan: Well spotted, I've edited the post

Matthew
on /blog/90

×2

×4

×3

×3

×3

Archive

Show me a random blog post

2026

Feb 2026

Christmas (2025) is over

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

Tags

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026