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Wikipedia:Reference desk/Archives/Mathematics/July 2013

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July 1

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 1

  1. Deriving volume of a cone formula with double integration

July 2

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 2

  1. From Unit sphere

July 3

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 3

  1. In simple terms, why are spin representations "projective" ?
  2. Name of this relationship
  3. sum of two squares is a cube

July 4

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 4

  1. coefficients of Dirichlet series

July 5

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 5

  1. prove that not Grobner base

July 6

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 6

  1. Convergence and Closed Form Expression

July 7

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 7

  1. Does this math theory make any sense or should I just drop it?

July 9

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 9

  1. Algebra

July 11

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 11

  1. Gödel's incompleteness theorems
  2. Generalisations of Fermat's Last Theorem?

July 12

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 12

  1. Question Related To Trigonometric Identities

July 13

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 13

  1. is it true that you can increase the quality of a RNG by (also) including a backdoor but not decrease it?

July 14

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 14

  1. A differentiable but not smooth function.
  2. Formulas for map projections created by Flex Projector
  3. must be a famous problem
  4. Consider a unit length ...

July 16

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 16

  1. Statistics: Sampling a copula
  2. Successive differences on the sequence of number of functions on a finite set, that is, the sequence {n^n}
  3. IMDb Weighted Average
  4. Partial derivative notation

July 17

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 17

  1. graph embedding dimension
  2. Matrices with one negative entry per row and column
  3. Is 27182818284590452354 special?

July 18

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 18

  1. Question from an old dunce about Euclid's V° axiom
  2. Terminology

July 19

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 19

  1. hf unit in tig welding
  2. Two brass crosses

July 20

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 20

  1. Arrows on number line
  2. Using color as a fourth dimension in graphs
  3. Knight move degree

July 22

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 22

  1. Convergence and divergence of infinite sum of (n^a*sin(n)^b)^-1

July 24

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 24

  1. Prove that (1/2) (3/4) (5/6) ... (99/100) < 1/10. (assignment)
  2. Sine integral and differentiation under the integral sign

July 25

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 25

  1. two digit sudoku and its answer

July 26

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 26

  1. Conjecture about the product of two squares of certain form always being a perfect square?
  2. Measuring "Northness"

July 27

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 27

  1. Probability in European Roulette

July 28

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 28

  1. Solve this pair of two equations

July 29

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 29

  1. Inconsistency in definition of figurate numbers.
  2. Differentiation under the integral sign without absolute convergence

July 31

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Wikipedia:Reference_desk/Archives/Mathematics/2013 July 31

  1. Software for making images