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Comments in green were written by me. Comments in blue were not written by me.
2019-12-17
Thanks for the feedback. (I now understand the need for redaction). My son sent me your link as a Xmas present. I must think of an appropriate retaliation. (What is a PDF?)Think I've fixed 1,6 and 9....8 eludes me, for the moment.
Rob
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Christmas (2025) is coming!
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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
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Dec 2023
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Christmas (2023) is coming!
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Chalkdust issue 17
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Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
Jan 2023
Christmas (2022) is over
2022
▼ show ▼
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Dec 2022
Off-by-one errors
Christmas card 2022
Nov 2022
Christmas (2022) is coming!
Oct 2022
24 Hour Maths Game Show
Mar 2022
Approximating π
Feb 2022
Build your own MENACE
Jan 2022
Christmas (2021) is over
2021
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Dec 2021
Christmas card 2021
Nov 2021
Christmas (2021) is coming!
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TMiP 2021 puzzle hunt
May 2021
Close encounters of the second kind
Jan 2021
Christmas (2020) is over
2020
▼ show ▼
▲ hide ▲
Dec 2020
Christmas card 2020
Nov 2020
Christmas (2020) is coming!
Jul 2020
Happy -62+e+gτ-√3 Approximation Day!
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 ▼
▲ hide ▲
Dec 2019
Visualising MENACE's learning
Christmas card 2019
Nov 2019
Christmas (2019) is coming!
Sep 2019
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
Jan 2019
Christmas (2018) is over
2018
▼ show ▼
▲ hide ▲
Dec 2018
Christmas cross stitch
MENACE in fiction
Christmas card 2018
Nov 2018
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
bubble bobble
thirteen
dates
hexapawn
cambridge
hats
palindromes
approximation
standard deviation
news
bempp
binary
machine learning
boundary element methods
realhats
crochet
matrix of cofactors
sport
flexagons
misleading statistics
mean
bluesky
nonograms
propositional calculus
football
speed
oeis
game show probability
interpolation
chebyshev
correlation
advent calendar
dataset
go
draughts
tennis
youtube
guest posts
polynomials
matt parker
graphs
dragon curves
gerry anderson
folding paper
books
mathslogicbot
numbers
wave scattering
rugby
mathsteroids
curvature
coventry
video games
chalkdust magazine
pascal's triangle
live stream
braiding
raspberry pi
logo
pac-man
electromagnetic field
rust
fonts
captain scarlet
gather town
reuleaux polygons
trigonometry
folding tube maps
turtles
kings
christmas
wool
pizza cutting
exponential growth
php
geogebra
newcastle
royal institution
map projections
python
arithmetic
hyperbolic surfaces
fence posts
matrix multiplication
data visualisation
stickers
manchester
pi approximation day
london
wordle
inline code
ucl
plastic ratio
final fantasy
tmip
coins
graph theory
royal baby
christmas card
martin gardner
runge's phenomenon
partridge puzzle
nine men's morris
platonic solids
squares
regular expressions
numerical analysis
geometry
arrangement puzzles
finite group
radio 4
determinants
manchester science festival
sound
zines
the aperiodical
phd
alphabets
bodmas
golden spiral
mathsjam
people maths
a gamut of games
quadrilaterals
24 hour maths
big internet math-off
computational complexity
reddit
games
errors
asteroids
latex
crossnumber
craft
dinosaurs
preconditioning
world cup
tetris
london underground
national lottery
edinburgh
golden ratio
stirling numbers
probability
puzzles
sorting
crossnumbers
error bars
crosswords
pythagoras
light
triangles
recursion
noughts and crosses
datasaurus dozen
matrices
convergence
data
anscombe's quartet
chess
simultaneous equations
warwick
kenilworth
accuracy
pokémon
ternary
finite element method
logs
hannah fry
friendly squares
frobel
bots
estimation
countdown
programming
signorini conditions
game of life
rhombicuboctahedron
talking maths in public
cross stitch
fractals
pokémon wordle
statistics
inverse matrices
weather station
menace
logic
matrix of minors
weak imposition
javascript
gaussian elimination
pi
databet
harriss spiral
european cup
sobolev spaces
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