List questions from recreational-mathematics

95

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Functional equation which only has constant functions: $f(x)+2f^2(x^2)-1=0,\forall x\in (1,+\infty)$

Published on 26 Mar 2026 - 16:56

1.4k

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New Year Maths $2019$

Published on 30 Dec 2018 - 16:03

112

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Digits of the square root of primes

Published on 27 Mar 2026 - 2:35

1.8k

Views

Integral for the New Year $2019$!

Published on 31 Dec 2018 - 22:00

262

Views

Problem of rooms

Published on 01 Jan 2019 - 21:04

314

Views

Equation to locate a square in a square

Published on 26 Mar 2026 - 3:47

1.4k

Views

Egg drop problem - minimize AVERAGE case

Published on 03 Jan 2019 - 13:08

118

Views

Permutation of boxes with two colors

Published on 04 Jan 2019 - 4:47

638

Views

Selecting a menu

Published on 05 Jan 2019 - 6:08

144

Views

Given two formulas $A$ and $B$, if $A$ follows from $B$ and $B$ follows from $A$ then is it true that $A$ and $B$ are equivalent?

Published on 25 Mar 2026 - 9:29

965

Views

What is the probability of rolling two 5s or better with 5 dice?

Published on 26 Mar 2026 - 17:13

70

Views

The function $f(x)=\arcsin(a\sinh(\sin(x)))$

Published on 06 Jan 2019 - 22:47

350

Views

If $f(x)=\int_{x-1}^x f(s)ds$, is $f$ constant? Periodic?

Published on 26 Mar 2026 - 11:17

2.7k

Views

How can I mathematically model and analyze an incremental game like Cookie Clicker?

Published on 25 Mar 2026 - 1:16

871

Views

How to solve this puzzle by using Axiom of Choice?

Published on 08 Jan 2019 - 18:42

List Question

Functional equation which only has constant functions: $f(x)+2f^2(x^2)-1=0,\forall x\in (1,+\infty)$

New Year Maths $2019$

Digits of the square root of primes

Integral for the New Year $2019$!

Problem of rooms

Equation to locate a square in a square

Egg drop problem - minimize AVERAGE case

Permutation of boxes with two colors

Selecting a menu

Given two formulas $A$ and $B$, if $A$ follows from $B$ and $B$ follows from $A$ then is it true that $A$ and $B$ are equivalent?

What is the probability of rolling two 5s or better with 5 dice?

The function $f(x)=\arcsin(a\sinh(\sin(x)))$

If $f(x)=\int_{x-1}^x f(s)ds$, is $f$ constant? Periodic?

How can I mathematically model and analyze an incremental game like Cookie Clicker?

How to solve this puzzle by using Axiom of Choice?

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