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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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Is MEDUSA the new BODMAS?
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Palindromic dates
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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
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Mathematical Games
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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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Tennis maths
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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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kenilworth
draughts
geometry
chess
people maths
reddit
matrix of cofactors
hannah fry
reuleaux polygons
24 hour maths
finite element method
sobolev spaces
cambridge
game show probability
frobel
matrices
books
accuracy
machine learning
nonograms
ucl
cross stitch
interpolation
rugby
craft
convergence
sound
a gamut of games
the aperiodical
pi
partridge puzzle
friendly squares
alphabets
exponential growth
turtles
games
binary
javascript
fonts
braiding
bubble bobble
ternary
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phd
arithmetic
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chebyshev
folding paper
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inline code
sorting
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squares
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thirteen
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dataset
python
london
standard deviation
coventry
realhats
royal baby
pythagoras
databet
rhombicuboctahedron
advent calendar
talking maths in public
error bars
nine men's morris
final fantasy
datasaurus dozen
newcastle
hexapawn
radio 4
guest posts
signorini conditions
dragon curves
golden spiral
regular expressions
electromagnetic field
matrix of minors
weather station
map projections
arrangement puzzles
bots
data
propositional calculus
dinosaurs
european cup
crossnumbers
mathslogicbot
crossnumber
pizza cutting
dates
crochet
fence posts
preconditioning
numbers
rust
wool
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gerry anderson
folding tube maps
manchester
big internet math-off
gaussian elimination
fractals
programming
christmas
gather town
weak imposition
football
puzzles
estimation
logo
light
quadrilaterals
christmas card
sport
hats
bodmas
youtube
flexagons
geogebra
latex
tennis
bempp
triangles
video games
data visualisation
numerical analysis
approximation
golden ratio
raspberry pi
runge's phenomenon
palindromes
pi approximation day
errors
mathsjam
simultaneous equations
graph theory
tmip
harriss spiral
recursion
edinburgh
pokémon
correlation
national lottery
logs
bluesky
boundary element methods
graphs
oeis
pascal's triangle
london underground
determinants
go
manchester science festival
mean
statistics
game of life
chalkdust magazine
warwick
live stream
polynomials
stirling numbers
misleading statistics
inverse matrices
mathsteroids
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martin gardner
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