List questions from recreational-mathematics

Published on 15 Apr 2026 - 8:11

192

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What length is needed to coil around a tube?

Published on 14 Apr 2026 - 13:55

74

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How to count tilings on a $2 \times n$ board using the adjacency matrix?

Published on 11 Apr 2026 - 14:17

189

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Derive formula for number of tilings of an $m \times n$ board.

Published on 28 Mar 2026 - 2:24

195

Views

Identifying distinct colored cubes from faces of $2 \times 2 \times 2$ arrangement

Published on 13 Apr 2026 - 15:44

191

Views

Subtractive and additive colour mixing as semigroups

Published on 14 Apr 2026 - 2:10

148

Views

Find the length of a diagonal in an inscribed (non-regular) hexagon

Published on 16 Apr 2026 - 12:12

117

Views

Probability example from Littlewood's A Mathematician's Miscellany

Published on 15 Apr 2026 - 7:34

53

Views

Why can't the decimal fraction part of $\frac{1}{d}$, $d \in \mathbb{N}^\ast$ have a recurring cycle of length greater than $d$?

Published on 16 Apr 2026 - 14:51

123

Views

Functional puzzle: find $f(2)$

Published on 14 Apr 2026 - 8:11

1.1k

Views

Counting question / solution verification

Published on 15 Apr 2026 - 6:43

254

Views

Xmas Maths 2017: The value of a $\color{red}m^{\color{green}{ince}\ \color{orange}{\pi}}$ and $\color{red}\pi^{\color{green}{ie}}$

Published on 17 Apr 2026 - 11:27

135

Views

Ropelength of tight knot

Published on 13 Apr 2026 - 11:07

65

Views

How to prove the value of an trigonometric term to zero?

Published on 08 Apr 2026 - 15:56

4k

Views

How many times are the hands of a clock at 33 degrees?

Published on 12 Apr 2026 - 4:16

List Question

Any insight on the half reciprocal Fibonacci sequence?

What length is needed to coil around a tube?

How to count tilings on a $2 \times n$ board using the adjacency matrix?

Derive formula for number of tilings of an $m \times n$ board.

Identifying distinct colored cubes from faces of $2 \times 2 \times 2$ arrangement

Subtractive and additive colour mixing as semigroups

Find the length of a diagonal in an inscribed (non-regular) hexagon

Probability example from Littlewood's A Mathematician's Miscellany

Why can't the decimal fraction part of $\frac{1}{d}$, $d \in \mathbb{N}^\ast$ have a recurring cycle of length greater than $d$?

Functional puzzle: find $f(2)$

Counting question / solution verification

Xmas Maths 2017: The value of a $\color{red}m^{\color{green}{ince}\ \color{orange}{\pi}}$ and $\color{red}\pi^{\color{green}{ie}}$

Ropelength of tight knot

How to prove the value of an trigonometric term to zero?

How many times are the hands of a clock at 33 degrees?

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