Wikipedia:Reference desk/Archives/Mathematics/July 2013

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July 1

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 1

1. Deriving volume of a cone formula with double integration

July 2

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 2

1. From Unit sphere

July 3

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

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 4

1. coefficients of Dirichlet series

July 5

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 5

1. prove that not Grobner base

July 6

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 6

1. Convergence and Closed Form Expression

July 7

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 7

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

July 9

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 9

1. Algebra

July 11

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 11

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

July 12

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 12

1. Question Related To Trigonometric Identities

July 13

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

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

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

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

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 18

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

July 19

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 19

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

July 20

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

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 22

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

July 24

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

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 25

1. two digit sudoku and its answer

July 26

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

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 27

1. Probability in European Roulette

July 28

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 28

1. Solve this pair of two equations

July 29

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

Wikipedia:Reference_desk/Archives/Mathematics/2013 July 31

1. Software for making images