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.

2017-12-28

I can solve #2 with code, but is there a tidy maths way to solve it directly?

2018-01-01

@C: look up something called Frobenius numbers. This problem's equivalent to finding the Frobenius number for 14 and 29.

Lewis
on /blog/47

×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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2025