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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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How much will I win on the new National Lottery?
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Tube map stellated rhombicuboctahedron
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Design your own flexagon
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errors
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matrices
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mean
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squares
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estimation
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frobel
simultaneous equations
gerry anderson
tmip
curvature
newcastle
crochet
sound
misleading statistics
partridge puzzle
statistics
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matrix of cofactors
correlation
numerical analysis
probability
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pizza cutting
wordle
hats
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folding tube maps
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graphs
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games
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numbers
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anscombe's quartet
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manchester science festival
menace
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runge's phenomenon
rust
rhombicuboctahedron
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noughts and crosses
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guest posts
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sorting
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chebyshev
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chalkdust magazine
captain scarlet
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royal institution
kings
sobolev spaces
cambridge
crossnumber
propositional calculus
reuleaux polygons
turtles
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folding paper
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dataset
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craft
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oeis
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