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

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

Archive

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