Wikipedia:Reference desk/Archives/Mathematics/October 2018

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October 1

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 1

1. What's the approximate natural density of even natural numbers where all these are true?

October 2

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 2

1. Perfect games

October 5

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 5

1. Semiprime Density

October 6

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 6

1. Definition of "group"

October 7

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 7

1. Complete stepping-on sequences

October 10

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 10

1. Limit question

October 18

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 18

1. Rings with characteristic a prime power
2. Calculator language

October 20

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 20

1. Traveling salesman problem, (tsp)

October 21

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 21

1. Helix rod geometry

October 22

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 22

1. Infinite group containing all finite groups

October 30

Wikipedia:Reference_desk/Archives/Mathematics/2018 October 30

1. RSA type challenges other than factoring