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.

2016-12-12

I think problem 5 needs clarification. By numbers, you mean positive integers? Does the sum just consisting of the number 35 count? Are these ordered or unordered sums?

Thank you for all your hard work on this, it's a lot of fun.

Mike
on /blog/36

2016-12-13

@Mike: I've added a clarification to puzzle 5. Glad you're enjoying the puzzles!

Matthew
on /blog/36

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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2025