Wikipedia:Reference desk/Archives/Mathematics/May 2013

= May 1 = Reference_desk/Archives/Mathematics/2013 May 1


 * 1) The closeness of the hyperreals
 * 2) (Un)folded paper pattern
 * 3) What fraction of moonlight is at night?
 * 4) The Polylogarithm and Palindromic polynomials

= May 4 = Reference_desk/Archives/Mathematics/2013 May 4


 * 1) Explicit equations for these three sequences

= May 5 = Reference_desk/Archives/Mathematics/2013 May 5


 * 1) Rolling all 6 numbers

= May 6 = Reference_desk/Archives/Mathematics/2013 May 6


 * 1) Summing an infinite series?

= May 7 = Reference_desk/Archives/Mathematics/2013 May 7


 * 1) Why does Pi appear in Stirling's approximation and Gaussian integrals ?

= May 8 = Reference_desk/Archives/Mathematics/2013 May 8


 * 1) Four scatter plots with same mean, standard deviation and other equalities

= May 9 = Reference_desk/Archives/Mathematics/2013 May 9


 * 1) quick math help
 * 2) Random walk collision
 * 3) Solving harmonic sin waves
 * 4) What does this example mean?
 * 5) The proof of the splitting lemma
 * 6) Puzzling trig problems

= May 10 = Reference_desk/Archives/Mathematics/2013 May 10


 * 1) Combinatorics

= May 11 = Reference_desk/Archives/Mathematics/2013 May 11


 * 1) Ramanujan's Pi Formula
 * 2) use of summation in fractions

= May 13 = Reference_desk/Archives/Mathematics/2013 May 13


 * 1) The Number Between 0 and 1 That Doesn't Exist
 * 2) Knight moves on an infinite board.
 * 3) chord question

= May 14 = Reference_desk/Archives/Mathematics/2013 May 14


 * 1) Need suggestions for a math topic
 * 2) Shortest paths between 3d co-ordinates

= May 15 = Reference_desk/Archives/Mathematics/2013 May 15


 * 1) Dijkstra's algorithm
 * 2) Decomposing a simply-connected space
 * 3) Expected value convergence question

= May 16 = Reference_desk/Archives/Mathematics/2013 May 16


 * 1) Magic square type Combinatorics Problem

= May 17 = Reference_desk/Archives/Mathematics/2013 May 17


 * 1) Hyper-Exponential Function

= May 18 = Reference_desk/Archives/Mathematics/2013 May 18


 * 1) Most efficient way to place rooms in a compound whilst following certain criteria
 * 2) Rational sine
 * 3) How does x^2 + x + 3 relate to area in real life?
 * 4) Nm conversion to pound/feet or poun/inches

= May 19 = Reference_desk/Archives/Mathematics/2013 May 19


 * 1) Reprised Confusion over Wikipedia Definitions of Sigma Additivity
 * 2) Parzen density estimate conditional variance
 * 3) Convergent or Divergent ?
 * 4) Minimum value of difference of Powers of Integers

= May 20 = Reference_desk/Archives/Mathematics/2013 May 20


 * 1) Rationalisation

= May 21 = Reference_desk/Archives/Mathematics/2013 May 21


 * 1) Twin primes

= May 22 = Reference_desk/Archives/Mathematics/2013 May 22


 * 1) Free loop generalization of Chen's iterated integrals

= May 24 = Reference_desk/Archives/Mathematics/2013 May 24


 * 1) Integral of different type
 * 2) Antiderivative of gamma function
 * 3) Ruler and compass construction
 * 4) Interior of connected components
 * 5) Combining p-values
 * 6) martingale versus random walk

= May 25 = Reference_desk/Archives/Mathematics/2013 May 25


 * 1) Parameters of a mechanical system
 * 2) Find the value of 'x' in the triangle of linked image
 * 3) height of arc from length of arc and length of chord

= May 26 = Reference_desk/Archives/Mathematics/2013 May 26


 * 1) P!=NP based on its own proof difficulty?
 * 2) Green's relations

= May 27 = Reference_desk/Archives/Mathematics/2013 May 27


 * 1) Resumed Discussion of Reprised Confusion over Wikipedia Definitions of Sigma Additivity

= May 28 = Reference_desk/Archives/Mathematics/2013 May 28


 * 1) A Number With All Digits Equal Can Never Be A Perfect Square

= May 29 = Reference_desk/Archives/Mathematics/2013 May 29


 * 1) Irrotational points of a vector field

= May 30 = Reference_desk/Archives/Mathematics/2013 May 30


 * 1) Generalized totient function
 * 2) Elliptic integrals and Gaussian integrals

= May 31 = Reference_desk/Archives/Mathematics/2013 May 31


 * 1) Linear independence of partial derivatives
 * 2) Two questions related to sphere packing...
 * 3) Borsuk's question
 * 4) Is it correct to equate the 2nd equation?