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Comments in green were written by me. Comments in blue were not written by me.
2025-12-18
Is there a word missing (positive?) from Q9? Surely any positive integer, n, can be written as the sum of the consecutive integers -(n-1),...,-1,0,1,...,n-1,n.
Alec
on
/blog/121
2025-12-18
@
Alec
: Yes, it should say positive integers
Matthew
on
/blog/121
×1
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PhD thesis, chapter ∞
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Is MEDUSA the new BODMAS?
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Solving the cross diagonal cover problem
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Braiding, pt. 2
Braiding, pt. 1
Making names in Life
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Euro 2016 stickers
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Proving Pythagoras' theorem
Dragon curves
The
Mathematical Games
of Martin Gardner
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Christmas (2015) is over
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Christmas (2015) is coming!
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How to kick a conversion
How much will I win on the new National Lottery?
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How OEISbot works
MENACE
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Optimal Pac-Man
Tube map stellated rhombicuboctahedron
Logic bot, pt. 2
Design your own flexagon
Jan 2015
Tube map Platonic solids, pt. 3
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Electromagnetic Field talk
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Countdown probability, pt. 2
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New machine unfriendly £1 coin, pt. 2
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Assorted christmaths
Pointless probability
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"Uncanny" royal coincidence
Raspberry Pi weather station
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Tube map Platonic solids, pt. 2
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ucl
javascript
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sorting
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wool
regular expressions
go
hats
python
bubble bobble
exponential growth
countdown
stirling numbers
signorini conditions
tmip
chalkdust magazine
accuracy
warwick
manchester science festival
arrangement puzzles
edinburgh
anscombe's quartet
wave scattering
dates
inverse matrices
sport
standard deviation
recursion
data visualisation
phd
christmas card
rugby
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nonograms
frobel
tennis
books
pokémon wordle
logs
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pizza cutting
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graphs
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preconditioning
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hyperbolic surfaces
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kenilworth
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weather station
squares
errors
chess
royal institution
guest posts
logic
finite element method
youtube
noughts and crosses
talking maths in public
quadrilaterals
polynomials
mathsjam
dinosaurs
datasaurus dozen
triangles
data
geometry
matrices
martin gardner
databet
statistics
partridge puzzle
estimation
crossnumbers
numerical analysis
friendly squares
cross stitch
zines
gather town
london
matt parker
game show probability
curvature
platonic solids
stickers
advent calendar
pac-man
binary
latex
radio 4
flexagons
logo
sobolev spaces
braiding
rust
hannah fry
plastic ratio
propositional calculus
games
map projections
pi
simultaneous equations
geogebra
correlation
light
european cup
big internet math-off
weak imposition
inline code
cambridge
tetris
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bodmas
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live stream
mean
fence posts
numbers
news
alphabets
wordle
palindromes
bots
fonts
video games
craft
24 hour maths
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people maths
bempp
the aperiodical
folding tube maps
mathslogicbot
kings
pi approximation day
programming
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interpolation
folding paper
machine learning
computational complexity
football
coventry
draughts
christmas
puzzles
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php
menace
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crochet
misleading statistics
pascal's triangle
arithmetic
determinants
dataset
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rhombicuboctahedron
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chebyshev
mathsteroids
matrix of cofactors
realhats
approximation
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