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.
2023-12-30
I really like 22, and will be using it with my top set Year 10s when I do circle theorems next term :)
Artie Smith
on
/blog/107
×7
×6
×6
×7
×6
Archive
Show me a random blog post
2025
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 10+cos(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
tennis
numbers
football
computational complexity
pi
video games
interpolation
programming
exponential growth
mathsjam
fractals
databet
matrices
trigonometry
nine men's morris
london underground
asteroids
folding paper
propositional calculus
stirling numbers
bempp
graphs
matrix of cofactors
ternary
mean
graph theory
hats
tmip
plastic ratio
sobolev spaces
hexapawn
map projections
turtles
rhombicuboctahedron
weak imposition
draughts
hyperbolic surfaces
people maths
friendly squares
chess
chalkdust magazine
countdown
braiding
electromagnetic field
palindromes
statistics
regular expressions
frobel
polynomials
accuracy
24 hour maths
gerry anderson
london
christmas
numerical analysis
sorting
data
hannah fry
quadrilaterals
bubble bobble
dinosaurs
harriss spiral
big internet math-off
coins
convergence
gather town
martin gardner
craft
light
captain scarlet
probability
ucl
mathslogicbot
menace
triangles
world cup
javascript
game show probability
live stream
christmas card
datasaurus dozen
youtube
correlation
oeis
sport
game of life
flexagons
games
royal institution
php
noughts and crosses
raspberry pi
rugby
talking maths in public
approximation
guest posts
error bars
dataset
binary
boundary element methods
mathsteroids
cross stitch
geometry
machine learning
pizza cutting
matrix of minors
reuleaux polygons
news
dates
data visualisation
puzzles
crochet
logic
matt parker
recursion
manchester
estimation
geogebra
reddit
golden spiral
pac-man
zines
pythagoras
folding tube maps
national lottery
preconditioning
runge's phenomenon
errors
final fantasy
matrix multiplication
books
a gamut of games
sound
chebyshev
latex
fence posts
python
gaussian elimination
realhats
fonts
finite group
royal baby
european cup
advent calendar
cambridge
finite element method
the aperiodical
pi approximation day
kings
go
crossnumber
platonic solids
newcastle
anscombe's quartet
squares
speed
signorini conditions
bodmas
simultaneous equations
wool
logs
curvature
edinburgh
pascal's triangle
inline code
bots
misleading statistics
inverse matrices
arithmetic
golden ratio
stickers
phd
radio 4
manchester science festival
determinants
weather station
logo
wave scattering
standard deviation
dragon curves
Archive
Show me a random blog post
▼ show ▼
▲ hide ▲
2025
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 10+cos(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
wave scattering
manchester
golden ratio
inverse matrices
braiding
radio 4
reddit
ternary
weather station
misleading statistics
crossnumber
sound
errors
frobel
draughts
squares
map projections
realhats
matrix of minors
numerical analysis
simultaneous equations
news
captain scarlet
boundary element methods
sorting
weak imposition
hannah fry
convergence
games
standard deviation
polynomials
palindromes
big internet math-off
bubble bobble
machine learning
coins
go
matrix multiplication
electromagnetic field
manchester science festival
estimation
graphs
finite group
friendly squares
chess
tennis
matt parker
wool
dragon curves
final fantasy
programming
datasaurus dozen
guest posts
arithmetic
curvature
hats
bempp
harriss spiral
triangles
gerry anderson
interpolation
sport
royal baby
speed
crochet
european cup
youtube
rhombicuboctahedron
php
kings
light
books
trigonometry
turtles
finite element method
puzzles
hyperbolic surfaces
geometry
pi approximation day
data
mean
mathsjam
reuleaux polygons
data visualisation
pizza cutting
tmip
latex
platonic solids
numbers
zines
inline code
christmas card
binary
anscombe's quartet
dinosaurs
noughts and crosses
chebyshev
cross stitch
talking maths in public
quadrilaterals
fence posts
logo
matrix of cofactors
folding tube maps
christmas
sobolev spaces
flexagons
chalkdust magazine
national lottery
bots
ucl
oeis
runge's phenomenon
stickers
bodmas
plastic ratio
logic
javascript
geogebra
game show probability
fonts
24 hour maths
martin gardner
live stream
error bars
exponential growth
newcastle
logs
dates
preconditioning
matrices
regular expressions
football
phd
a gamut of games
world cup
pi
craft
london
dataset
python
rugby
determinants
game of life
databet
computational complexity
pascal's triangle
london underground
fractals
probability
recursion
menace
folding paper
stirling numbers
statistics
nine men's morris
mathslogicbot
mathsteroids
people maths
advent calendar
signorini conditions
accuracy
propositional calculus
hexapawn
video games
edinburgh
golden spiral
the aperiodical
approximation
asteroids
cambridge
gaussian elimination
correlation
pac-man
royal institution
pythagoras
graph theory
gather town
raspberry pi
countdown
© Matthew Scroggs 2012–2025
on /blog/107