Wikipedia:Reference desk/Archives/Mathematics/December 2010

= December 1 = Reference_desk/Archives/Mathematics/2010 December 1


 * 1) what's my degree worth?
 * 2) Calculus
 * 3) Automorphisms of free products

= December 2 = Reference_desk/Archives/Mathematics/2010 December 2


 * 1) ZFC as a set of construction rules
 * 2) Chebyshev Polynomial Coefficients
 * 3) Computerised proofs

= December 4 = Reference_desk/Archives/Mathematics/2010 December 4


 * 1) Card shuffling problem
 * 2) further damaging the worst sort
 * 3) Easy to use time-series or forecasting software
 * 4) Fixed-length rope between two posts

= December 5 = Reference_desk/Archives/Mathematics/2010 December 5


 * 1) Quadratic Residues
 * 2) Trouble with finding Arc length
 * 3) how do you calculate the probability of something that has never happened?
 * 4) Medians of percentages
 * 5) Solving under multiple square roots
 * 6) Integer sequence

= December 6 = Reference_desk/Archives/Mathematics/2010 December 6


 * 1) Continuity and uniform continuity
 * 2) Rigor of a wikibooks article
 * 3) the uncountable real "numbers"
 * 4) Golden Ratio
 * 5) ∑ra^r
 * 6) Rotation of solids (calculus I HW)
 * 7) Characters on homology groups of simplicial complexes
 * 8) 1/N
 * 9) Numerical integration
 * 10) Well-definition and definability

= December 7 = Reference_desk/Archives/Mathematics/2010 December 7


 * 1) Wilson's theorem
 * 2) Compression of Primes
 * 3) Sagarin rankings + possibilities

= December 8 = Reference_desk/Archives/Mathematics/2010 December 8


 * 1) Approximating the relative value of three positive real numbers x:y:z with positive integers a:b:c

= December 9 = Reference_desk/Archives/Mathematics/2010 December 9


 * 1) Sum of Roots of Polynomial
 * 2) Name this Surface

= December 10 = Reference_desk/Archives/Mathematics/2010 December 10


 * 1) grade
 * 2) Attempted Proof that P is not equal to NP (need peer review).

= December 11 = Reference_desk/Archives/Mathematics/2010 December 11


 * 1) Formulas for finding sums
 * 2) a^x+b^x≠c^x when x>2
 * 3) Proper Use of Heuristic Involving PNT?
 * 4) Integral

= December 12 = Reference_desk/Archives/Mathematics/2010 December 12


 * 1) Most circular countries
 * 2) Rocket to the Moon, HSC question.
 * 3) A Logic Question

= December 13 = Reference_desk/Archives/Mathematics/2010 December 13


 * 1) Ambiguous problem(apparently)
 * 2) Coding qualitative variables as dummy variables
 * 3) Theory of constant-Jacobian coordinate changes
 * 4) Integral from Biot-Savart law
 * 5) History: irrationality of powers of pi
 * 6) Intersecting loops

= December 14 = Reference_desk/Archives/Mathematics/2010 December 14


 * 1) Slight variation on the angle sum formulae
 * 2) Combining two low resolution images
 * 3) Cluster points of uncountable sets
 * 4) logical terminology

= December 15 = Reference_desk/Archives/Mathematics/2010 December 15


 * 1) Something weird
 * 2) Laws of Mathematics
 * 3) Series
 * 4) centre of circle

= December 16 = Reference_desk/Archives/Mathematics/2010 December 16


 * 1) Probability
 * 2) Calculus textbook question
 * 3) Probability and combinatorics

= December 17 = Reference_desk/Archives/Mathematics/2010 December 17


 * 1) textbook equation doesn't work.
 * 2) Derivative question
 * 3) units in equations, cancelling
 * 4) Rational points on a circle

= December 18 = Reference_desk/Archives/Mathematics/2010 December 18


 * 1) Calculus practice
 * 2) Nonogram constant

= December 19 = Reference_desk/Archives/Mathematics/2010 December 19


 * 1) Unclear about an equation in an article
 * 2) Fourier transform of a multivariate gaussian
 * 3) Can someone give a simpler explanation of ultraradicals to me?

= December 20 = Reference_desk/Archives/Mathematics/2010 December 20


 * 1) Binomial distribution for small p, high right tails, mental calculation?
 * 2) Table of marks
 * 3) Euclid's Algorithm

= December 21 = Reference_desk/Archives/Mathematics/2010 December 21


 * 1) Question about Limits and Functions
 * 2) statistics symbol

= December 22 = Reference_desk/Archives/Mathematics/2010 December 22


 * 1) Parametric equations
 * 2) Basic probability question
 * 3) Adjustment for symbolic regression
 * 4) Two translation articles
 * 5) How to define that a set is inside another set

= December 24 = Reference_desk/Archives/Mathematics/2010 December 24


 * 1) Why does this get so ugly so fast? (factoring cubic equations)
 * 2) Why can't I take the indefinite integral of the reciprocate of the Log Integral function?
 * 3) Condition of a circle within another circle

= December 25 = Reference_desk/Archives/Mathematics/2010 December 25


 * 1) Can someone please explain this trick? Thanks.
 * 2) Mouse in a maze
 * 3) Center of simple algebra field

= December 26 = Reference_desk/Archives/Mathematics/2010 December 26


 * 1) Reference request for certain linear sequences of functions.

= December 27 = Reference_desk/Archives/Mathematics/2010 December 27


 * 1) applied mathematical.
 * 2) Euclid's Algorithm Part II

= December 28 = Reference_desk/Archives/Mathematics/2010 December 28


 * 1) Acyclic Undirected Graph

= December 29 = Reference_desk/Archives/Mathematics/2010 December 29


 * 1) Inverse of an infinite tridiagonal matrix
 * 2) so what's a fractal dimension anyway?
 * 3) Irreducible quartic polynomials with Galois group A4
 * 4) Homology and Cohomology

= December 30 = Reference_desk/Archives/Mathematics/2010 December 30


 * 1) matrices

= December 31 = Reference_desk/Archives/Mathematics/2010 December 31


 * 1) Drawing Lines.....
 * 2) pseudocode to rotate an array by 90 degrees as a square
 * 3) Number of possible letters games
 * 4) Nature of SL(2,F5)
 * 5) ii
 * 6) Behaviour of a function similar to a periodic function