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Wikipedia:Reference desk/Archives/Mathematics/September 2019

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Welcome to the Wikipedia Mathematics Reference Desk Archives
The page you are currently viewing is a monthly archive index. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages.



September 1

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 1

  1. Central binomial coefficient difficult proof

September 3

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 3

  1. Kummer transformation

September 9

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 9

  1. identify mathematicians

September 12

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 12

  1. Problem from splitting pills
  2. Continuous function sending every real number to itself or its opposite but neither even nor odd

September 13

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 13

  1. Symmetrical set Venn diagram
  2. Sphericity

September 14

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 14

  1. Fibonacci numbers and Friday the 13th

September 15

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 15

  1. Continuous function that is "even" at some points but "odd" at others

September 19

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 19

  1. Subtended angle
  2. Fundamental Theorem of Line Integrals
  3. Composite numbers whose divisors are all perfect squares plus one

September 22

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 22

  1. percentage

September 24

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 24

  1. significant figures

September 25

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 25

  1. Fast verification that elliptic-curve point multiplication gives (0,0)
  2. Smallest grid with four orientation and every possible 2x2 combination in it.

September 26

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 26

  1. Is there a standard textual method of describing a planar graph?

September 28

Wikipedia:Reference_desk/Archives/Mathematics/2019 September 28

  1. Can formula such as this be represented mathematically by geometric shapes?
  2. random partitions of an interval
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