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15
Math.TechQA.Club
2026-04-16 08:04:25
47
Views
Math talk with constraint on words (e.g. only use 6-letters words)
Published on
16 Apr 2026 - 8:04
#recreational-mathematics
200
Views
Are there any non-trivial stable tournaments?
Published on
14 Apr 2026 - 5:18
#graph-theory
#recreational-mathematics
#game-theory
133
Views
Formal application of Pigeonhole principle on voting and candidates
Published on
11 May 2026 - 9:35
#combinatorics
#discrete-mathematics
#recreational-mathematics
#pigeonhole-principle
#voting-theory
135
Views
Can every number be written as $2^{a_1}+\cdots+2^{a_n} + 1$?
Published on
16 Apr 2026 - 1:26
#elementary-number-theory
#algorithms
#recreational-mathematics
#exponentiation
#binary
58
Views
Minimum amount of points in $\mathbb{R}^{n}$ which satisfies certain conditions
Published on
13 Apr 2026 - 23:47
#real-analysis
#recreational-mathematics
#real-numbers
147
Views
General formula for the upper bound of pi involving nested square roots (circumscribed perimeters of regular polygons)
Published on
16 Apr 2026 - 8:50
#geometry
#recreational-mathematics
#pi
#nested-radicals
509
Views
Connecting $\sqrt{i \sqrt{i \sqrt{i \sqrt{i \dots}}}}$ to an infinite process?
Published on
11 Apr 2026 - 19:45
#limits
#complex-numbers
#recreational-mathematics
151
Views
$N$ lousy shooters in a gunfight
Published on
14 Apr 2026 - 13:11
#probability
#dynamical-systems
#recreational-mathematics
#nonlinear-system
46
Views
When the sum of two sins a constant for any odd n
Published on
28 Apr 2026 - 12:19
#calculus
#trigonometry
#optimization
#recreational-mathematics
#alternative-proof
122
Views
Magic squares for everybody: for statesmen and pedestrians
Published on
14 Apr 2026 - 1:46
#abstract-algebra
#geometry
#analysis
#recreational-mathematics
#magic-square
92
Views
What is the probability that three living people in the same family will celebrate their birthdays on exactly the same day.
Published on
12 Apr 2026 - 17:01
#probability
#recreational-mathematics
#birthday
60
Views
What is the smallest unseen number in an iid sample? (From "A number NOBODY has thought of - Numberphile")
Published on
14 Apr 2026 - 14:54
#probability
#probability-theory
#statistics
#random-variables
#recreational-mathematics
88
Views
What is a sublinear function? Is $y'(x) = x^5(e^{4-y^2}-1)$ sublinear?
Published on
14 Apr 2026 - 21:12
#real-analysis
#calculus
#ordinary-differential-equations
#analysis
#recreational-mathematics
103
Views
How to calculate the orthogonality error between sine and cosine wave?
Published on
13 Apr 2026 - 1:01
#discrete-mathematics
#contest-math
#recreational-mathematics
1k
Views
Collatz conjecture but with $n^2-1$ instead of $3n+1.$ Does the sequence starting with $13$ go to infinity?
Published on
14 Apr 2026 - 0:40
#number-theory
#recreational-mathematics
#collatz-conjecture
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