mscroggs
.co.uk
mscroggs
.co.uk
blog
puzzles
academic
talks
contact
subscribe
↓ ☰ ↓
subscribe
Loading image...
Comment
Comments
Comments in green were written by me. Comments in blue were not written by me.
2024-12-23
@
Dr. Matrix
: Thanks, I've corrected it
Matthew
on
/blog/111
Archive
Show me a random blog post
2026
Feb 2026
Christmas (2025) is over
2025
▼ show ▼
▲ hide ▲
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
▼ show ▼
▲ hide ▲
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 ▼
▲ hide ▲
Dec 2023
Christmas card 2023
Nov 2023
Christmas (2023) is coming!
Zines
Sep 2023
TMiP 2023 puzzle hunt
May 2023
Chalkdust issue 17
Apr 2023
Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
Jan 2023
Christmas (2022) is over
2022
▼ show ▼
▲ hide ▲
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
▼ show ▼
▲ hide ▲
Dec 2021
Christmas card 2021
Nov 2021
Christmas (2021) is coming!
Sep 2021
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 -6+e+τ 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
alphabets
programming
people maths
warwick
asteroids
newcastle
trigonometry
probability
dinosaurs
binary
sobolev spaces
games
turtles
geogebra
tennis
dataset
data visualisation
flexagons
bots
nonograms
logic
christmas card
accuracy
christmas
chebyshev
php
news
triangles
mean
numerical analysis
inverse matrices
fonts
noughts and crosses
data
talking maths in public
sorting
countdown
matt parker
latex
raspberry pi
craft
edinburgh
live stream
rust
national lottery
exponential growth
ternary
world cup
crossnumbers
map projections
finite element method
matrices
error bars
anscombe's quartet
braiding
menace
chalkdust magazine
signorini conditions
hyperbolic surfaces
harriss spiral
manchester science festival
big internet math-off
tmip
reddit
game of life
speed
crochet
wool
stirling numbers
pi approximation day
24 hour maths
graphs
hats
computational complexity
a gamut of games
folding paper
royal institution
phd
databet
nine men's morris
matrix multiplication
reuleaux polygons
advent calendar
pascal's triangle
final fantasy
graph theory
golden ratio
london underground
preconditioning
machine learning
bempp
crosswords
partridge puzzle
dragon curves
coventry
weak imposition
game show probability
draughts
javascript
estimation
hexapawn
curvature
chess
pizza cutting
numbers
boundary element methods
gerry anderson
european cup
finite group
wave scattering
mathslogicbot
gather town
video games
friendly squares
frobel
gaussian elimination
guest posts
weather station
realhats
oeis
rhombicuboctahedron
matrix of cofactors
quadrilaterals
pac-man
cambridge
simultaneous equations
youtube
hannah fry
standard deviation
datasaurus dozen
kenilworth
recursion
propositional calculus
sound
captain scarlet
coins
squares
arithmetic
sport
determinants
go
misleading statistics
matrix of minors
palindromes
golden spiral
plastic ratio
kings
fence posts
fractals
ucl
pi
mathsjam
thirteen
london
runge's phenomenon
zines
geometry
electromagnetic field
rugby
puzzles
logo
cross stitch
royal baby
books
radio 4
the aperiodical
polynomials
pythagoras
folding tube maps
interpolation
platonic solids
python
light
regular expressions
mathsteroids
convergence
crossnumber
bubble bobble
football
logs
inline code
manchester
correlation
bodmas
errors
dates
statistics
stickers
martin gardner
approximation
Archive
Show me a random blog post
▼ show ▼
▲ hide ▲
2026
Feb 2026
Christmas (2025) is over
2025
▼ show ▼
▲ hide ▲
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
▼ show ▼
▲ hide ▲
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 ▼
▲ hide ▲
Dec 2023
Christmas card 2023
Nov 2023
Christmas (2023) is coming!
Zines
Sep 2023
TMiP 2023 puzzle hunt
May 2023
Chalkdust issue 17
Apr 2023
Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
Jan 2023
Christmas (2022) is over
2022
▼ show ▼
▲ hide ▲
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
▼ show ▼
▲ hide ▲
Dec 2021
Christmas card 2021
Nov 2021
Christmas (2021) is coming!
Sep 2021
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 -6+e+τ 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
hyperbolic surfaces
a gamut of games
graphs
wave scattering
chebyshev
world cup
pac-man
coventry
interpolation
finite group
national lottery
standard deviation
edinburgh
determinants
live stream
latex
matrix of minors
geometry
thirteen
christmas card
partridge puzzle
final fantasy
martin gardner
data
youtube
royal institution
frobel
dinosaurs
sound
game show probability
fonts
inverse matrices
pythagoras
kenilworth
ternary
the aperiodical
machine learning
books
turtles
graph theory
puzzles
pizza cutting
programming
ucl
javascript
mathslogicbot
polynomials
trigonometry
advent calendar
crossnumbers
games
chalkdust magazine
rhombicuboctahedron
electromagnetic field
stirling numbers
christmas
folding tube maps
signorini conditions
accuracy
cambridge
finite element method
preconditioning
pi approximation day
nonograms
sobolev spaces
24 hour maths
stickers
palindromes
pi
statistics
football
convergence
regular expressions
matt parker
asteroids
numbers
golden spiral
fence posts
reuleaux polygons
estimation
map projections
phd
guest posts
triangles
crochet
pascal's triangle
runge's phenomenon
dragon curves
rust
platonic solids
geogebra
fractals
oeis
probability
mathsteroids
numerical analysis
hexapawn
gerry anderson
folding paper
manchester
squares
weather station
bots
datasaurus dozen
manchester science festival
bubble bobble
people maths
dates
crosswords
london
noughts and crosses
propositional calculus
crossnumber
exponential growth
recursion
coins
harriss spiral
matrix of cofactors
approximation
royal baby
gather town
simultaneous equations
sport
arithmetic
captain scarlet
video games
error bars
big internet math-off
chess
flexagons
errors
curvature
misleading statistics
braiding
tmip
gaussian elimination
binary
london underground
logic
realhats
hats
weak imposition
dataset
golden ratio
logo
rugby
anscombe's quartet
mathsjam
logs
python
inline code
data visualisation
game of life
light
friendly squares
zines
talking maths in public
draughts
bempp
computational complexity
cross stitch
php
menace
plastic ratio
raspberry pi
nine men's morris
mean
craft
bodmas
countdown
news
reddit
european cup
boundary element methods
matrix multiplication
quadrilaterals
correlation
kings
newcastle
warwick
wool
go
databet
tennis
radio 4
matrices
hannah fry
sorting
speed
alphabets
© Matthew Scroggs 2012–2026
on /blog/111