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Wikipedia:Reference desk/Archives/Mathematics/February 2019

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Welcome to the Wikipedia Mathematics Reference Desk Archives
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February 1

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 1

  1. Limits

February 2

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 2

  1. Iterated totients and primitive roots

February 4

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 4

  1. sum of cubes
  2. Are there any models of the Euclidean plane that use non-Euclidean geometry?

February 5

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 5

  1. Coloured bricks - historical

February 11

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 11

  1. Turning an iterative equation into a differential equation

February 12

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 12

  1. The Turing test
  2. Dedekind psi function
  3. Partitions of the 24-cell vertices into Hexagons?

February 13

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 13

  1. Number of dictionary-compatible phrases of length n

February 14

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 14

  1. Fantastic Beasts and Where to Find Them

February 15

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 15

  1. Solve for x

February 16

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 16

  1. Mathematical induction article, the section "Example: forming dollar amounts by coins"
  2. Polynomials sending primes to primes

February 18

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 18

  1. Standard deviation question
  2. 1 with a googolplex zeroes

February 20

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 20

  1. Inverse of function

February 21

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 21

  1. Transformation Constant

February 22

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 22

  1. Dihedral angle of antiprisms

February 23

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 23

  1. Chords instead of sines
  2. General formula for in terms of series expansion coefficients of

February 26

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 26

  1. Limit of quotient

February 27

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 27

  1. Fully faithful endofunctors of Set
  2. Series

February 28

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Wikipedia:Reference_desk/Archives/Mathematics/2019 February 28

  1. Rates of return