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.

2017-12-07

Should I worry one of my 3 digit answers contains a zero?

Neal
on /blog/46

2017-12-07

@Neal: No, there may be zeroes in the three digit numbers (but you can discard these when solving the final logic puzzle as there are no zeros in the answer to that).

Matthew
on /blog/46

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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2025