Wikipedia:Reference desk/Archives/Mathematics/February 2007

= February 1 = Reference_desk/Archives/Mathematics/2007 February 1


 * 1) complex integration or integration w.r.t. complex measure?
 * 2) adding every number from 1 to 100
 * 3) Statistics/Normal Distribution (moved here from Miscellaneous desk)

= February 2 = Reference_desk/Archives/Mathematics/2007 February 2


 * 1) pentiminoes
 * 2) Poincar√© conjecture
 * 3) seeking hyperbolic cookbook
 * 4) triangle angle bisectors2
 * 5) Statistics/Normal Distribution
 * 6) Hyperbolic geometry
 * 7) summation of fractions
 * 8) Equations
 * 9) Twin Primes

= February 3 = Reference_desk/Archives/Mathematics/2007 February 3


 * 1) algebra 1

= February 4 = Reference_desk/Archives/Mathematics/2007 February 4


 * 1) Another triangle question
 * 2) Rectangular numbers
 * 3) Set of all integers

= February 5 = Reference_desk/Archives/Mathematics/2007 February 5


 * 1) What is a tangent plane to z=f(x,y) at (a,b)?
 * 2) This is a retarded question, but...
 * 3) Curves of quickest descent
 * 4) mark up question
 * 5) Infinity + 1

= February 6 = Reference_desk/Archives/Mathematics/2007 February 6


 * 1) Sterlings
 * 2) Sum of Normal distributions
 * 3) Kurtosis
 * 4) If it takes 20 men 6 hours to dig a hole, how long will it take 10 men to dig half a hole?
 * 5) Quadratic equations
 * 6) What's x and y
 * 7) Independent events
 * 1) Independent events

= February 7 = Reference_desk/Archives/Mathematics/2007 February 7


 * 1) Finding the center and radius of a circle
 * 2) Airy function coefficients
 * 3) Vandalism

= February 8 = Reference_desk/Archives/Mathematics/2007 February 8


 * 1) Do square root of -i exists?
 * 2) e-mail of ministry education of research center
 * 3) Algorithm for pairing players in round-robin chess tournament
 * 4) arcsin(\sqrt{2/3})

= February 9 = Reference_desk/Archives/Mathematics/2007 February 9


 * 1) intercept
 * 2) Vectors

= February 10 = Reference_desk/Archives/Mathematics/2007 February 10


 * 1) how do you add a topic?
 * 2) Calculation of chances of spherical spawn

= February 11 = Reference_desk/Archives/Mathematics/2007 February 11

= February 12 = Reference_desk/Archives/Mathematics/2007 February 12


 * 1) Mathematical basis of quantum physics
 * 2) How do you call 1/(1-x)?
 * 3) Frequency of occurrence
 * 1) Frequency of occurrence

= February 13 = Reference_desk/Archives/Mathematics/2007 February 13


 * 1) exchanging the variable in logarithmic cubic quations
 * 2) Solving cubic equations
 * 3) Anyone bored?
 * 4) Can someone give me a question please?
 * 5) How to pay back infinite dollars for a finite debt

= February 14 = Reference_desk/Archives/Mathematics/2007 February 14


 * 1) Clearing up a few things
 * 2) Intergral of Cosine squared X
 * 3) Checking some derivatives
 * 4) Homework Help!!! (I know, just hear me out)

= February 15 = Reference_desk/Archives/Mathematics/2007 February 15


 * 1) matrices
 * 2) Regression Analysis

= February 16 = Reference_desk/Archives/Mathematics/2007 February 16


 * 1) Pull tabs
 * 2) Ellipses and hyperbolas
 * 3) Negative exponents and differential calculus help

= February 17 = Reference_desk/Archives/Mathematics/2007 February 17


 * 1) homework

= February 18 = Reference_desk/Archives/Mathematics/2007 February 18


 * 1) Notation confusions with physics and mathematics

= February 19 = Reference_desk/Archives/Mathematics/2007 February 19


 * 1) Best calculus textbook
 * 2) simplex method
 * 3) Math Formatting Help

= February 20 = Reference_desk/Archives/Mathematics/2007 February 20


 * 1) Fibonacci Sequences
 * 2) primitive of 1/ln(x)
 * 3) standard integrals
 * 4) a mile
 * 5) .3(9)

= February 21 = Reference_desk/Archives/Mathematics/2007 February 21


 * 1) division
 * 2) When two diagonizable matrices commute, are they simultaneously diagonizable?
 * 3) A riddle...

= February 22 = Reference_desk/Archives/Mathematics/2007 February 22


 * 1) Different answer to an integral than that given by Mathematica
 * 2) I doubt this is the right place to ask the question, but
 * 3) Lempel-Ziv-Welch compression algorithm example on Wikipedia
 * 4) mathematical practical applications
 * 5) Size of next prime number

= February 23 = Reference_desk/Archives/Mathematics/2007 February 23


 * 1) How to start?
 * 2) Check math for time dilation
 * 3) 270 degree triangles
 * 4) "Blackboard bold 1" with subscript

= February 24 = Reference_desk/Archives/Mathematics/2007 February 24


 * 1) Length of Curved part of a circle
 * 2) Software for category theory diagrams

= February 25 = Reference_desk/Archives/Mathematics/2007 February 25


 * 1) Lindemann-Weierstrass Theorem
 * 2) Triangle

= February 26 = Reference_desk/Archives/Mathematics/2007 February 26


 * 1) Several proofs of the Goldbach conjecture on arXiv, how come?
 * 2) What is the relationship between graph theory and topology?

= February 27 = Reference_desk/Archives/Mathematics/2007 February 27


 * 1) Proofs and computerized searches
 * 2) The next sequence
 * 3) This would drive you nuts
 * 4) A measure of non-concentricity - a unit or discriptor
 * 5) Squaring the circle

= February 28 = Reference_desk/Archives/Mathematics/2007 February 28


 * 1) Finding first digit
 * 2) ´how many miles are there in a kilometer? ´´´´
 * 3) Sequences derived from Fibonacci sequence.
 * 4) Interesting RIDDLE.. needs mathematical solution
 * 5) Archiving
 * 6) Pairwise permutation differences