Element118

Another student that still has not managed to understand enough mathematics.

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Mathematical rebus: a quote

mathematics rebus asked Jul 8, 2016 at 14:41

puzzling.stackexchange.com

11 votes

Rearrangement Inequality

code-golf math combinatorics permutations asked Nov 21, 2015 at 8:41

codegolf.stackexchange.com

9 votes

The answer is in your face

riddle rhyme asked May 6, 2016 at 11:30

puzzling.stackexchange.com

8 votes

Matchsticks for lengths

mathematics geometry matches asked Aug 10, 2016 at 13:59

puzzling.stackexchange.com

7 votes

Maximising shortest path passing through $n$ points inside a bounded region

geometry optimization asked Oct 26, 2015 at 13:17

math.stackexchange.com

6 votes

What numbers are possible for the fractional chromatic numbers?

combinatorics graph-theory coloring asked Nov 3, 2021 at 16:28

math.stackexchange.com

6 votes

Picking random integers $a_i$ until the $\gcd(a_1,a_2,\dots,a_n)$ is 1

probability elementary-number-theory asked Oct 11, 2015 at 11:55

math.stackexchange.com

Top Answers

What was my wife trying to say?

puzzling.stackexchange.com

When is $\sum_{i=1}^n a_i^{-2}=1$?

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Find $a,b$ for which $xyz+z=a,\quad xyz^2+z=b,\quad x^2+y^2+z^2=4$ has unique solution

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Correct way to add 22 to 4 to get 9999

puzzling.stackexchange.com

The essence of life! (A pretty easy What Am I)

puzzling.stackexchange.com

How do you derive the formula of $\sin (a+b)$ from $\cos(a+b)=\cos(a)\cos(b)-\sin(a)\sin(b)$

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How to beat Count Dracula, part 2

puzzling.stackexchange.com

Find the numbers in sequence

puzzling.stackexchange.com

What is the remainder when $1^6 + 2^6 + 3^6 + ... + 99^6 + 100^6$ is divided by 5?

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Cryptobiology? Biocryptology?

puzzling.stackexchange.com

Find the maximum of the $S=|a_1-b_1|+|a_2-b_2|+\cdots+|a_{31}-b_{31}|$

math.stackexchange.com

The number of real roots of the equation $1+a_1x+a_2x^2+.....+a_nx^n=0$ where $|x|<\frac{1}{3}$ and $|a_i|<2 \forall i=1,2,3....,n$ is

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Find $\lim_{n\to \infty}r_n$ and $\lim_{n\to \infty}s_n$

math.stackexchange.com