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.
2022-12-12
@
Dr Lizzie
: There's some discussion on Ravelry in the
Woolly Thoughts group
. Someone's hint for day 6 was:
"Try it out for totals for 1,2,3,4… 8 Keep a note of how many 1 digit, how many 2 digit and so on for each number."
Matthew
on
/blog/97
Archive
Show me a random blog post
2025
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 -5+g-π 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
matrix of minors
tennis
geogebra
php
pi approximation day
trigonometry
chess
matrices
zines
24 hour maths
gerry anderson
chalkdust magazine
python
manchester science festival
puzzles
palindromes
bempp
royal baby
programming
advent calendar
video games
rugby
tmip
triangles
football
crossnumbers
newcastle
go
simultaneous equations
sound
computational complexity
european cup
approximation
propositional calculus
runge's phenomenon
interpolation
hannah fry
sobolev spaces
wool
fractals
mathslogicbot
big internet math-off
geometry
pi
a gamut of games
reuleaux polygons
pizza cutting
fonts
error bars
matt parker
ternary
nonograms
databet
folding paper
cambridge
inverse matrices
recursion
numerical analysis
braiding
noughts and crosses
stickers
numbers
pac-man
rhombicuboctahedron
logic
correlation
quadrilaterals
the aperiodical
folding tube maps
accuracy
matrix multiplication
turtles
captain scarlet
guest posts
oeis
arithmetic
nine men's morris
graphs
finite element method
sorting
golden ratio
crossnumber
hats
matrix of cofactors
platonic solids
people maths
regular expressions
gaussian elimination
anscombe's quartet
weather station
errors
plastic ratio
javascript
hexapawn
logs
standard deviation
polynomials
kings
craft
convergence
london underground
books
exponential growth
misleading statistics
squares
cross stitch
youtube
london
alphabets
christmas card
final fantasy
games
frobel
dragon curves
datasaurus dozen
stirling numbers
talking maths in public
menace
bubble bobble
mean
mathsjam
pythagoras
weak imposition
fence posts
realhats
mathsteroids
wave scattering
chebyshev
bots
sport
dates
map projections
statistics
crochet
christmas
phd
radio 4
news
flexagons
machine learning
boundary element methods
game show probability
latex
probability
asteroids
binary
graph theory
electromagnetic field
game of life
data
crosswords
martin gardner
friendly squares
light
raspberry pi
determinants
bodmas
manchester
inline code
reddit
estimation
pascal's triangle
ucl
draughts
preconditioning
edinburgh
hyperbolic surfaces
golden spiral
finite group
national lottery
data visualisation
dataset
logo
signorini conditions
world cup
live stream
dinosaurs
curvature
speed
gather town
royal institution
coins
countdown
harriss spiral
Archive
Show me a random blog post
▼ show ▼
▲ hide ▲
2025
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 -5+g-π 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
royal institution
machine learning
programming
edinburgh
quadrilaterals
realhats
menace
sorting
curvature
people maths
php
phd
polynomials
crochet
matrix of minors
harriss spiral
speed
youtube
determinants
frobel
crossnumber
tennis
game show probability
go
preconditioning
raspberry pi
folding tube maps
european cup
recursion
fence posts
wool
turtles
palindromes
kings
boundary element methods
interpolation
martin gardner
bodmas
geogebra
coins
craft
matrix multiplication
sport
dates
anscombe's quartet
statistics
hyperbolic surfaces
rhombicuboctahedron
the aperiodical
numerical analysis
geometry
bempp
data
friendly squares
correlation
sound
zines
logo
inverse matrices
errors
electromagnetic field
hexapawn
tmip
christmas
dinosaurs
ternary
stirling numbers
logic
javascript
databet
london underground
national lottery
manchester science festival
inline code
live stream
pythagoras
datasaurus dozen
python
nine men's morris
accuracy
reddit
graphs
news
standard deviation
big internet math-off
crossnumbers
probability
misleading statistics
bubble bobble
countdown
final fantasy
fractals
nonograms
matrix of cofactors
golden ratio
chalkdust magazine
advent calendar
stickers
latex
error bars
hannah fry
folding paper
propositional calculus
runge's phenomenon
talking maths in public
estimation
platonic solids
finite group
exponential growth
arithmetic
matt parker
dragon curves
crosswords
oeis
puzzles
books
convergence
logs
mathslogicbot
weak imposition
mathsteroids
light
radio 4
noughts and crosses
gaussian elimination
finite element method
gather town
sobolev spaces
flexagons
matrices
chess
simultaneous equations
pi approximation day
reuleaux polygons
pac-man
rugby
golden spiral
gerry anderson
data visualisation
fonts
draughts
bots
cross stitch
christmas card
world cup
newcastle
games
regular expressions
chebyshev
wave scattering
pizza cutting
football
captain scarlet
mathsjam
graph theory
london
weather station
alphabets
map projections
ucl
computational complexity
pascal's triangle
manchester
24 hour maths
guest posts
triangles
braiding
squares
a gamut of games
royal baby
video games
numbers
dataset
approximation
asteroids
game of life
cambridge
hats
plastic ratio
binary
trigonometry
mean
signorini conditions
pi
© Matthew Scroggs 2012–2025
on /blog/97