Wikipedia:Reference desk/Archives/Mathematics/December 2011

= December 1 = Reference_desk/Archives/Mathematics/2011 December 1


 * 1) Algebra problem
 * 2) minimum cirdumference
 * 3) Bayesian inference of a time-varying parameter

= December 2 = Reference_desk/Archives/Mathematics/2011 December 2


 * 1) Why does the dim function act much like the log function?
 * 2) Riddle about politicians
 * 3) Wave measured at random intervals

= December 3 = Reference_desk/Archives/Mathematics/2011 December 3


 * 1) Natural logarithm
 * 2) Integrability

= December 4 = Reference_desk/Archives/Mathematics/2011 December 4


 * 1) Question about eigenvectors and eigenvalues
 * 2) Algebra Problem
 * 3) Closed form series solution
 * 4) Find point closest to a plane
 * 5) Searching for patters in a lattice

= December 5 = Reference_desk/Archives/Mathematics/2011 December 5


 * 1) Maths Question.
 * 2) Logic in quantum theory
 * 3) Equivalence of two congruences

= December 6 = Reference_desk/Archives/Mathematics/2011 December 6


 * 1) Population increase percentage
 * 2) Obtaining an absolute sum.

= December 7 = Reference_desk/Archives/Mathematics/2011 December 7


 * 1) 3SAT Question
 * 2) Three-dimensional continuous chaotic system with an exact solution

= December 8 = Reference_desk/Archives/Mathematics/2011 December 8


 * 1) Integration
 * 2) Time-weighted graph of sparse noisy data
 * 3) The Derivative of a Function
 * 4) Loan rates and overpayments

= December 9 = Reference_desk/Archives/Mathematics/2011 December 9


 * 1) Function
 * 2) Periods
 * 3) Embedding n-dimensional polyhedra into an k-dimension integer grid.
 * 4) substitution and elimination methods d-rt

= December 10 = Reference_desk/Archives/Mathematics/2011 December 10


 * 1) analytic functions

= December 11 = Reference_desk/Archives/Mathematics/2011 December 11


 * 1) Summa cum laude or magna cum laude?
 * 2) Please help me understand my lecturer's notes - metric spaces, norms and topologies
 * 3) Lone dot used in norm symbol

= December 12 = Reference_desk/Archives/Mathematics/2011 December 12


 * 1) Obsolete typography
 * 2) Intersection of circle and line

= December 13 = Reference_desk/Archives/Mathematics/2011 December 13


 * 1) Error with 1 − 2 + 3 − 4 + · · ·?
 * 2) Sample median uncertainty from normal distribution contaminated with symmetric outliers

= December 14 = Reference_desk/Archives/Mathematics/2011 December 14


 * 1) Summation beginner
 * 2) 'Curved' objects
 * 3) 1917 arithmetic problem...

= December 15 = Reference_desk/Archives/Mathematics/2011 December 15


 * 1) Berry paradox in second order logic
 * 2) Sieve of Atkin
 * 3) Calculating average utilization of equipments

= December 16 = Reference_desk/Archives/Mathematics/2011 December 16


 * 1) P vs NP and Automated Theorem Proving
 * 2) Is Gödel's incompleteness theorem really so dire?
 * 3) TAOCP Vol 4A page 5
 * 4) integrals
 * 5) Exact trajectory of a point in a vector field
 * 6) The Twelve Days of Christmas

= December 17 = Reference_desk/Archives/Mathematics/2011 December 17


 * 1) Induction and integration by parts

= December 19 = Reference_desk/Archives/Mathematics/2011 December 19


 * 1) Platonism vs formalism

= December 20 = Reference_desk/Archives/Mathematics/2011 December 20


 * 1) Marcus Hutter versus Yuri Matiyasevich
 * 2) Statistical test for Gender, Race, and Socioeconomic status (three options) and a three-scale likert
 * 3) Going between hexagonal and parallelogram tilings
 * 4) ZFC being consistent if a proper sub-set of ZFC is consistent

= December 22 = Reference_desk/Archives/Mathematics/2011 December 22


 * 1) Linear Programming and Graph theory
 * 2) Primitive Roots

= December 23 = Reference_desk/Archives/Mathematics/2011 December 23


 * 1) Help understanding an algorithm
 * 2) Tensegrity

= December 24 = Reference_desk/Archives/Mathematics/2011 December 24


 * 1) Duck question?
 * 2) number of jordan decomposition

= December 25 = Reference_desk/Archives/Mathematics/2011 December 25


 * 1) Even numbers among intervals of primes
 * 2) Arc length in polar form
 * 3) when can we say that we've found the root of an equation?

= December 26 = Reference_desk/Archives/Mathematics/2011 December 26


 * 1) Confused about complex exponentiation

= December 27 = Reference_desk/Archives/Mathematics/2011 December 27


 * 1) in what way is the sum of all positive integers -1/12
 * 2) What is it called when an irrelevant outcome between 3rd place and 4th place determines who finishes 1st or 2nd?

= December 28 = Reference_desk/Archives/Mathematics/2011 December 28


 * 1) Optional stopping
 * 2) Is there an algorithm which - for every first-order proposition (with identity and predicate symbols) - determines whether that propostion is consistent?
 * 3) betting game

= December 29 = Reference_desk/Archives/Mathematics/2011 December 29


 * 1) 15 Coin game
 * 2) Order statistics
 * 3) Sum of digits of 2^1000

= December 30 = Reference_desk/Archives/Mathematics/2011 December 30


 * 1) cavitation
 * 2) Determinants