List questions from problem-solving

Published on 28 Sep 2016 - 18:45

147

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Probability of each outcome, when Flipping a Hemisphere

Published on 29 Sep 2016 - 22:30

70

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Is this a valid proof? Modular arithmetic with fractions

Published on 03 Oct 2016 - 13:21

142

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Why there isn't any formula to calculate $\sum\limits_{k=1}^n{k^k}$ explicitly?

Published on 25 Mar 2026 - 17:40

72

Views

Identify a function's coefficients based on its values.

Published on 05 Oct 2016 - 20:39

519

Views

Solving recursive integral equation with Matlab

Published on 05 Oct 2016 - 23:55

325

Views

Is $x^2+x+1$ ever a perfect power?

Published on 06 Oct 2016 - 4:46

57

Views

Pidgeon Hole Problem involving points on the plane.

Published on 29 Mar 2026 - 22:28

416

Views

About the parity of the product $(a_1-1)(a_2-2)\cdots(a_n-n)$

Published on 26 Mar 2026 - 4:53

49

Views

Solve $a^2=b+c^2$ with integers

Published on 28 Mar 2026 - 7:43

103

Views

Is there any mathematical work on formalizing problems and their solutions as mathematical objects?

Published on 25 Mar 2026 - 6:01

68

Views

What’s wrong with my strategy for this number-theoretic game?

Published on 11 Oct 2016 - 14:30

512

Views

Possible Arrangements of the $n$ red balls and $n$ blue balls

Published on 13 Oct 2016 - 18:20

75

Views

Find $a+b+c$ to the nearest integer

Published on 17 Oct 2016 - 3:32

145

Views

How would you solve this equation for "A"?

Published on 18 Oct 2016 - 17:56

List Question

Finding a Similar Curve Between Two Other Curves Given Only One Point of Data

Probability of each outcome, when Flipping a Hemisphere

Is this a valid proof? Modular arithmetic with fractions

Why there isn't any formula to calculate $\sum\limits_{k=1}^n{k^k}$ explicitly?

Identify a function's coefficients based on its values.

Solving recursive integral equation with Matlab

Is $x^2+x+1$ ever a perfect power?

Pidgeon Hole Problem involving points on the plane.

About the parity of the product $(a_1-1)(a_2-2)\cdots(a_n-n)$

Solve $a^2=b+c^2$ with integers

Is there any mathematical work on formalizing problems and their solutions as mathematical objects?

What’s wrong with my strategy for this number-theoretic game?

Possible Arrangements of the $n$ red balls and $n$ blue balls

Find $a+b+c$ to the nearest integer

How would you solve this equation for "A"?

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