Wikipedia:Reference desk/Archives/Mathematics/July 2013

= July 1 = Reference_desk/Archives/Mathematics/2013 July 1


 * 1) Deriving volume of a cone formula with double integration

= July 2 = Reference_desk/Archives/Mathematics/2013 July 2


 * 1) From Unit sphere

= July 3 = 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 = Reference_desk/Archives/Mathematics/2013 July 4


 * 1) coefficients of Dirichlet series

= July 5 = Reference_desk/Archives/Mathematics/2013 July 5


 * 1) prove that not  Grobner base

= July 6 = Reference_desk/Archives/Mathematics/2013 July 6


 * 1) Convergence and Closed Form Expression

= July 7 = Reference_desk/Archives/Mathematics/2013 July 7


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

= July 9 = Reference_desk/Archives/Mathematics/2013 July 9


 * 1) Algebra

= July 11 = Reference_desk/Archives/Mathematics/2013 July 11


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

= July 12 = Reference_desk/Archives/Mathematics/2013 July 12


 * 1) Question Related To Trigonometric Identities

= July 13 = 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 = 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 = 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 = 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 = Reference_desk/Archives/Mathematics/2013 July 18


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

= July 19 = Reference_desk/Archives/Mathematics/2013 July 19


 * 1) hf unit in tig welding
 * 2) Two brass crosses

= July 20 = 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 = Reference_desk/Archives/Mathematics/2013 July 22


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

= July 24 = 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 = Reference_desk/Archives/Mathematics/2013 July 25


 * 1) two digit sudoku and its answer

= July 26 = 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 = Reference_desk/Archives/Mathematics/2013 July 27


 * 1) Probability in European Roulette

= July 28 = Reference_desk/Archives/Mathematics/2013 July 28


 * 1) Solve this pair of two equations

= July 29 = 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 = Reference_desk/Archives/Mathematics/2013 July 31


 * 1) Software for making images