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15
Math.TechQA.Club
2026-03-28 21:26:44
233
Views
Best re-roll strategy for a large straight in Yathzee, given $\{1,1,1,6,6\}$
Published on
28 Mar 2026 - 21:26
#combinatorics
#recreational-mathematics
#dice
437
Views
Say, hypothetically, there were 4 seconds in 1 minute instead of 60 seconds. How many seconds would 24 hours (1 day) be?
Published on
29 May 2020 - 19:02
#recreational-mathematics
46
Views
how to prove this recurrence of determinants
Published on
30 May 2020 - 9:46
#linear-algebra
#matrices
#recurrence-relations
#determinant
#recreational-mathematics
54
Views
Questioning the discrete nature of $\mathbb{Q}$
Published on
30 May 2020 - 13:02
#soft-question
#recreational-mathematics
71
Views
Do there exist $2k+1$ irrational numbers such that their product and sum are both rational?
Published on
30 May 2020 - 19:30
#elementary-number-theory
#contest-math
#recreational-mathematics
130
Views
Fruit Tree Paradox: Sum of disjoint probabilities not equalling $1$
Published on
25 Mar 2026 - 18:56
#probability
#recreational-mathematics
#geometric-series
#paradoxes
229
Views
Impossible to double an integer by moving a the initial digit to last
Published on
29 Mar 2026 - 10:18
#elementary-number-theory
#recreational-mathematics
#decimal-expansion
440
Views
Find all values for a and b such that two vectors are not perpendicular
Published on
01 Apr 2026 - 7:51
#vectors
#recreational-mathematics
#3d
40
Views
Showing some decimal representations are not rational
Published on
25 Mar 2026 - 22:09
#recreational-mathematics
#rationality-testing
49
Views
Do the functions f(x), g(x), and h(x) exist so that f'(x)=g(x), g'(x)=h(x), and h'(x)=f(x), but none of the functions are multiples of each other?
Published on
30 Mar 2026 - 13:24
#calculus
#recreational-mathematics
#recursion
58
Views
Finding an expression for $\sin^{2n}$ as sums of sines
Published on
04 Jun 2020 - 17:01
#trigonometry
#complex-numbers
#recreational-mathematics
70
Views
Giving away $500$ pencils: $1$ on the first day, $2$ on the second day, etc. How long will it take?
Published on
01 Apr 2026 - 19:16
#recreational-mathematics
#problem-solving
#puzzle
240
Views
Pursuit-evasion game with n pursuers and one evader
Published on
04 Apr 2026 - 7:59
#differential-geometry
#recreational-mathematics
#game-theory
#calculus-of-variations
#differential-games
3.4k
Views
Examples of simple but highly unintuitive results?
Published on
28 Mar 2026 - 15:26
#soft-question
#recreational-mathematics
#intuition
#big-list
234
Views
Find the remainder of the polynomial $f(x)$ divided by $(x-b)(x-a)$ given its remainder when divided by $x-a$ and $x-b$
Published on
26 Mar 2026 - 14:34
#polynomials
#recreational-mathematics
#euclidean-algorithm
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