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
 2025 

Jun 2025

A nonogram alphabet

Mar 2025

How to write a crossnumber

Jan 2025

Christmas (2024) is over
Friendly squares
 2024 
▼ show ▼
 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

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

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2025