List questions from recreational-mathematics

Published on 14 Apr 2026 - 3:39

124

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Election Toy Model leads to a question of an interesting function if it exists

Published on 13 Apr 2026 - 1:57

67

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Frequencies of gaps between years with $3$ Friday the 13ths

Published on 25 Mar 2026 - 19:05

48

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How to find variable equation solution

Published on 09 Apr 2026 - 11:45

188

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How many lines and circles are needed to construct the 65537-gon (known lower bounds)

Published on 25 Mar 2026 - 12:54

51

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Extracting number of digits of terminating decimal

Published on 08 Apr 2026 - 14:47

41

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How to find algebraic curve for specific, predetermined shape?

Published on 24 Apr 2026 - 17:19

242

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Visual proofs of $1^3+2^3+3^3+\dots+n^3=(1+2+3+\dots+n)^2$

Published on 17 Apr 2026 - 15:01

194

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How could we tell that we would end up with exactly 30 digits of convergence per almost every 22 i units in the upper limit?

Published on 14 Apr 2026 - 2:54

53

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Sum of unit fractions problem; conjecture about bijection between solutions to $\frac{1}{N}=\frac{1}{p}+\frac{1}{q}$ and divisors of $N^2$

Published on 10 Apr 2026 - 22:10

56

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Solving a "messy" constrained optimization problem

Published on 12 Apr 2026 - 15:28

482

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Parallelogram law functional equation: $ f ( x + y ) + f ( x - y ) = 2 \big( f ( x ) + f ( y ) \big) $

Published on 18 Apr 2026 - 13:52

375

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Collecting all of Martin Gardner's Mathematical Games

Published on 14 Apr 2026 - 8:09

64

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A Contingent Statement Only a Knight Could Make

Published on 12 Apr 2026 - 6:41

443

Views

Deriving a formula for the amount of time you should study for multiple tests

Published on 11 Apr 2026 - 22:09

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A question I got from an 8 years old kid:

Election Toy Model leads to a question of an interesting function if it exists

Frequencies of gaps between years with $3$ Friday the 13ths

How to find variable equation solution

How many lines and circles are needed to construct the 65537-gon (known lower bounds)

Extracting number of digits of terminating decimal

How to find algebraic curve for specific, predetermined shape?

Visual proofs of $1^3+2^3+3^3+\dots+n^3=(1+2+3+\dots+n)^2$

How could we tell that we would end up with exactly 30 digits of convergence per almost every 22 i units in the upper limit?

Sum of unit fractions problem; conjecture about bijection between solutions to $\frac{1}{N}=\frac{1}{p}+\frac{1}{q}$ and divisors of $N^2$

Solving a "messy" constrained optimization problem

Parallelogram law functional equation: $ f ( x + y ) + f ( x - y ) = 2 \big( f ( x ) + f ( y ) \big) $

Collecting all of Martin Gardner's Mathematical Games

A Contingent Statement Only a Knight Could Make

Deriving a formula for the amount of time you should study for multiple tests

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