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.

2020-01-02

Where did the coordinates for Wally come from? Are they meaningful, or are they just some random coordinates thrown together?

Michael T
on /blog/72

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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026