Kullback–Leibler divergence(en.wikipedia.org)

158 points by dedalus 3 years ago | 66 comments

6174(en.wikipedia.org)

443 points by gone35 2 years ago | 90 comments

Wikipedia article on 6174, Kaprekar's constant, the fixed point reached by repeatedly subtracting ascending from descending digit arrangements of four-digit numbers.

Huffman Coding(en.wikipedia.org)

4 points by tosh 1 year ago | 2 comments

Visual calculus(en.wikipedia.org)

195 points by larion1 2 years ago | 32 comments

Anscombe's Quartet(en.wikipedia.org)

117 points by gidellav 1 year ago | 25 comments

Untouchable number(en.wikipedia.org)

95 points by optimalsolver 3 years ago | 47 comments