mscroggs.co.uk
mscroggs.co.uk

subscribe

Comment

Comments

Comments in green were written by me. Comments in blue were not written by me.
@Dan Whitman: Find the difference between the original number and the reverse of the original. Call this difference \(a\). Next add \(a\) to the reverse of \(a\)...
Matthew
on /blog/37
            ×1   
@Matthew: Thank you for the prompt response! It makes sense now and perhaps I should have read a little closer!
Dan Whitman
on /blog/37
               

Archive

Show me a random blog post
 2026 

May 2026

World Cup stickers 2026

Apr 2026

A new puzzle every day
Mixing Wordle with other games

Feb 2026

Christmas (2025) is over
 2025 

Dec 2025

Christmas card 2025

Nov 2025

Christmas (2025) is coming!

Sep 2025

The partridge puzzle

Aug 2025

TMiP 2025 puzzle hunt

Jun 2025

A nonogram alphabet

Mar 2025

How to write a crossnumber

Jan 2025

Christmas (2024) is over
Friendly squares
 2024 

Dec 2024

A regular expression Christmas puzzle
Christmas card 2024

Nov 2024

Christmas (2024) is coming!

Feb 2024

Zines, pt. 2

Jan 2024

Christmas (2023) is over
 2023 
▼ show ▼
 2022 
▼ show ▼
 2021 
▼ show ▼
 2020 
▼ show ▼
 2019 
▼ show ▼
 2018 
▼ show ▼
 2017 
▼ show ▼
 2016 
▼ show ▼
 2015 
▼ show ▼
 2014 
▼ show ▼
 2013 
▼ show ▼
 2012 
▼ show ▼

Tags

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

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2026