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Comments in green were written by me. Comments in blue were not written by me.
2025-12-25
@
Aisha
: Hm, I used exactly the same method for both of these days. I'm not sure if it lends itself to a nice clean formula, but it might! I'll share my approach after the contest is over!
Seth Cohen
on
/blog/120
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May 2020
A surprising fact about quadrilaterals
Interesting tautologies
Mar 2020
Log-scaled axes
Feb 2020
PhD thesis, chapter ∞
PhD thesis, chapter 5
PhD thesis, chapter 4
PhD thesis, chapter 3
Inverting a matrix
PhD thesis, chapter 2
Jan 2020
PhD thesis, chapter 1
Gaussian elimination
Matrix multiplication
Christmas (2019) is over
2019
▼ show ▼
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Dec 2019
Visualising MENACE's learning
Christmas card 2019
Nov 2019
Christmas (2019) is coming!
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A non-converging LaTeX document
TMiP 2019 treasure punt
Jul 2019
Big Internet Math-Off stickers 2019
Jun 2019
Proving a conjecture
Apr 2019
Harriss and other spirals
Mar 2019
realhats
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Christmas (2018) is over
2018
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Dec 2018
Christmas cross stitch
MENACE in fiction
Christmas card 2018
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Christmas (2018) is coming!
Sep 2018
Runge's Phenomenon
Jul 2018
World Cup stickers 2018, pt. 3
Mathsteroids
Jun 2018
World Cup stickers 2018, pt. 2
May 2018
A bad Puzzle for Today
Apr 2018
Building MENACEs for other games
Mar 2018
A 20,000-to-1 baby?
World Cup stickers 2018
Jan 2018
Origins of World War I
Christmas (2017) is over
2017
▼ show ▼
▲ hide ▲
Dec 2017
Christmas card 2017
Nov 2017
Christmas (2017) is coming!
MENACE at Manchester Science Festival
Jun 2017
Big Ben Strikes Again
Mar 2017
The end of coins of constant width
Dragon curves II
Feb 2017
The importance of estimation error
Jan 2017
Is MEDUSA the new BODMAS?
2016
▼ show ▼
▲ hide ▲
Dec 2016
Christmas (2016) is over
Video game surfaces
Christmas card 2016
Nov 2016
Christmas (2016) is coming!
Oct 2016
Logical contradictions
Palindromic dates
Sep 2016
Tube map kaleidocycles
Jul 2016
Solving the cross diagonal cover problem
Jun 2016
Braiding, pt. 2
Braiding, pt. 1
Making names in Life
May 2016
Euro 2016 stickers
Mar 2016
Proving Pythagoras' theorem
Dragon curves
The
Mathematical Games
of Martin Gardner
Jan 2016
Christmas (2015) is over
2015
▼ show ▼
▲ hide ▲
Nov 2015
Christmas (2015) is coming!
Oct 2015
How to kick a conversion
How much will I win on the new National Lottery?
Aug 2015
How OEISbot works
MENACE
Mar 2015
Optimal Pac-Man
Tube map stellated rhombicuboctahedron
Logic bot, pt. 2
Design your own flexagon
Jan 2015
Tube map Platonic solids, pt. 3
2014
▼ show ▼
▲ hide ▲
Nov 2014
Logic bot
Sep 2014
Electromagnetic Field talk
Jun 2014
Tennis maths
May 2014
World Cup stickers
Apr 2014
Countdown probability, pt. 2
Countdown probability
Mar 2014
New machine unfriendly £1 coin, pt. 2
New machine unfriendly £1 coin
2013
▼ show ▼
▲ hide ▲
Dec 2013
Assorted christmaths
Pointless probability
Jul 2013
"Uncanny" royal coincidence
Raspberry Pi weather station
2012
▼ show ▼
▲ hide ▲
Nov 2012
Tube map Platonic solids, pt. 2
Oct 2012
Tube map Platonic solids
Tags
noughts and crosses
approximation
databet
people maths
asteroids
manchester science festival
curvature
dataset
gather town
pi
pythagoras
cambridge
geogebra
convergence
crossnumber
map projections
sorting
raspberry pi
speed
menace
national lottery
european cup
nine men's morris
bots
edinburgh
misleading statistics
draughts
braiding
a gamut of games
martin gardner
fence posts
probability
weather station
countdown
matrix multiplication
rugby
hannah fry
the aperiodical
errors
binary
frobel
24 hour maths
harriss spiral
sport
latex
geometry
reddit
ternary
finite element method
numbers
dinosaurs
game show probability
chess
mathslogicbot
matrix of cofactors
rhombicuboctahedron
coins
rust
fonts
squares
programming
guest posts
sound
matt parker
logic
talking maths in public
partridge puzzle
nonograms
plastic ratio
football
royal institution
stickers
wool
chalkdust magazine
reuleaux polygons
signorini conditions
accuracy
electromagnetic field
flexagons
gerry anderson
bubble bobble
royal baby
crochet
golden spiral
craft
phd
news
coventry
exponential growth
computational complexity
fractals
regular expressions
light
weak imposition
christmas card
numerical analysis
crossnumbers
puzzles
youtube
mathsjam
hyperbolic surfaces
arithmetic
logs
captain scarlet
london underground
palindromes
gaussian elimination
sobolev spaces
hexapawn
video games
turtles
correlation
recursion
wave scattering
data visualisation
matrix of minors
quadrilaterals
finite group
tennis
folding tube maps
games
alphabets
php
anscombe's quartet
tmip
world cup
inline code
inverse matrices
hats
trigonometry
pascal's triangle
live stream
zines
kenilworth
thirteen
big internet math-off
folding paper
pac-man
data
ucl
newcastle
crosswords
golden ratio
graphs
london
platonic solids
pizza cutting
advent calendar
dragon curves
polynomials
radio 4
estimation
graph theory
statistics
warwick
go
final fantasy
preconditioning
logo
oeis
cross stitch
error bars
books
dates
mathsteroids
manchester
game of life
interpolation
javascript
datasaurus dozen
kings
friendly squares
triangles
python
matrices
christmas
machine learning
simultaneous equations
boundary element methods
realhats
bempp
runge's phenomenon
pi approximation day
standard deviation
bodmas
stirling numbers
chebyshev
determinants
propositional calculus
mean
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