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Comments in green were written by me. Comments in blue were not written by me.
2024-12-19
Matt, great card this year! Problems 1 and 2 are slightly ambiguous though in that you did not specify that each digit could only be used once.
I initially thought the answers were simply 44×44 = 1936 and 99×99999999 = 9899999901, respectively ????
Dan Whitman
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matrix of cofactors
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misleading statistics
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books
radio 4
news
palindromes
martin gardner
convergence
regular expressions
fence posts
christmas
tennis
logo
game show probability
manchester
logic
preconditioning
crossnumber
mathsjam
chess
edinburgh
map projections
video games
ternary
error bars
approximation
matrix multiplication
final fantasy
rugby
a gamut of games
graph theory
friendly squares
exponential growth
errors
databet
hannah fry
mathslogicbot
royal baby
signorini conditions
the aperiodical
gather town
computational complexity
dragon curves
game of life
triangles
advent calendar
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php
programming
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pascal's triangle
anscombe's quartet
statistics
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ucl
national lottery
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interpolation
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© Matthew Scroggs 2012–2025
I initially thought the answers were simply 44×44 = 1936 and 99×99999999 = 9899999901, respectively ????
on /blog/112