Wikipedia:Reference desk/Archives/Mathematics/March 2009

= March 1 = Reference_desk/Archives/Mathematics/2009 March 1


 * 1) LaTeX question
 * 2) Equality of some differentiated inner products
 * 3) Infinity Norm of A Fourier Series

= March 2 = Reference_desk/Archives/Mathematics/2009 March 2


 * 1) A good book in Tensor Calculus?

= March 3 = Reference_desk/Archives/Mathematics/2009 March 3


 * 1) Conditional convergence of complex series
 * 2) why is financial charts plotted on logarithmic scale
 * 3) ramanujan nested radicals problem
 * 4) Comparing MATLAB and C++

= March 4 = Reference_desk/Archives/Mathematics/2009 March 4


 * 1) Proof in baby Rudin Theorem 3.42
 * 2) Probability: Normal & Exponential Expectations
 * 3) what is the opposite of zero?

= March 5 = Reference_desk/Archives/Mathematics/2009 March 5


 * 1) Length of a curve
 * 2) Continued - Random Generator
 * 3) Uniform distribution and independence
 * 4) Differential Equations for Chemical Engineering
 * 5) Calculation of Pi

= March 6 = Reference_desk/Archives/Mathematics/2009 March 6


 * 1) About Lagrange's Theorem
 * 2) Physics question
 * 3)  Finding $y(x)$ from $frac{d}{dx}$ Finding $frac{dy}{dx}$ from $frac{d}{dx}$
 * 4) Determinants as Tensor Fields or Matrix Functions
 * 5) Cesaro mean

= March 7 = Reference_desk/Archives/Mathematics/2009 March 7


 * 1) derivative of a series
 * 2) confusion about the proof of the splitting lemma in the wikipedia article
 * 3) Confusion about differentiability & continuity

= March 8 = Reference_desk/Archives/Mathematics/2009 March 8


 * 1) Pascal Matrix
 * 2) Formula for nxn Singular Matrices
 * 3) Hard to compute mathematical constant
 * 4) conditions for a map to be a homomorphism
 * 5) Solving Exponentials... with a twist

= March 9 = Reference_desk/Archives/Mathematics/2009 March 9


 * 1) sum of n terms of a series
 * 2) Fractional derivatives of exp(-1/x^2)
 * 3) Communicating meaning with distant space aliens - no pictures allowed
 * 4) Commuting family of matrices
 * 5) What do I have to be to get my profile on Wikipedia?
 * 6) Question on Perfect Squares
 * 7) An alternative to human mathematical concepts
 * 8) Topological Vector Spaces

= March 10 = Reference_desk/Archives/Mathematics/2009 March 10


 * 1) Pearson's Square namesake?
 * 2) Very quick question on constant functions
 * 3) Where did the symbol (J) for irrationals on this page originate from?
 * 4) User:Anonymous Dissident/Log
 * 5) curves within curves
 * 6) Energy loss in Reflection (intensity loss)    [formula wanted please]
 * 7) Probability

= March 11 = Reference_desk/Archives/Mathematics/2009 March 11


 * 1) number of spanning trees of K_n-e

= March 12 = Reference_desk/Archives/Mathematics/2009 March 12


 * 1) transcendental numbers and Khinchin's constant
 * 2) Square root of a limit = limit of square root?
 * 3) "Ecological" study etymology
 * 4) Calculation probability for draws
 * 5) bound degree of a region in a planar graph
 * 6) What is this probability distribution?
 * 7) Extract the constant term from a polynomial, with Maple9

= March 13 = Reference_desk/Archives/Mathematics/2009 March 13


 * 1) Products of Multiple Geometric Series

= March 14 = Reference_desk/Archives/Mathematics/2009 March 14


 * 1) What!

= March 15 = Reference_desk/Archives/Mathematics/2009 March 15


 * 1) Hilbert curve
 * 2) How do I calculate probability of an event occurring consecutively over many repetitions?
 * 3) Probability in Rummikub

= March 16 = Reference_desk/Archives/Mathematics/2009 March 16


 * 1) Self-Dual Tessellation
 * 2) Converse to Heine-Cantor theorem

= March 17 = Reference_desk/Archives/Mathematics/2009 March 17


 * 1) Elliptic and Parabolic equations
 * 2) Two point boundary value problems
 * 3) Surface name?
 * 4) Chess problem
 * 5) Expected value of length of a chord
 * 6) [[Wikipedia:Reference_desk/Archives/Mathematics/2009 March 17#.5Bhttp:.2F.2Fs5.tinypic.com.2F1zodz5w.jpg_Trapezoid_solving_an_angle.5D|Trapezoid solving an angle]]

= March 18 = Reference_desk/Archives/Mathematics/2009 March 18


 * 1) F-statistic application
 * 2) AIME
 * 3) Prime number problem

= March 19 = Reference_desk/Archives/Mathematics/2009 March 19


 * 1) Functional Convergence
 * 2) Differential Equation

= March 20 = Reference_desk/Archives/Mathematics/2009 March 20


 * 1) First and Second derivative
 * 2) Polynomial Roots
 * 3) Question of Cubes
 * 4) Intrinsic Equations

= March 21 = Reference_desk/Archives/Mathematics/2009 March 21


 * 1) Looking for a reference
 * 2) Central Limit Theorem & the Gamma Distribution

= March 22 = Reference_desk/Archives/Mathematics/2009 March 22


 * 1) Value of an L-function
 * 2) Birthdays

= March 23 = Reference_desk/Archives/Mathematics/2009 March 23


 * 1) Birthdays Part 2
 * 2) What do mathematicians think about legal laws?
 * 3) vertex connectivity of a graph

= March 24 = Reference_desk/Archives/Mathematics/2009 March 24


 * 1) Pronunciation
 * 2) Sylow 2-subgroups of classical groups
 * 3) ALGORITHM carl leffler

= March 25 = Reference_desk/Archives/Mathematics/2009 March 25


 * 1) Using two results to generate a "combined" result
 * 2) Necklace with pendante catenary shape
 * 3) Show xsin(1/x) is integrable rigorously?
 * 4) unsolved math mysteries?
 * 5) Independence number of  2^n as a graph.
 * 6) Set theory paradox
 * 7) Random number generation

= March 26 = Reference_desk/Archives/Mathematics/2009 March 26


 * 1) winding
 * 2) Matrix notations (quick lighthearted question)
 * 3) In the way of deriving the 1st kind christoffel symbol

= March 27 = Reference_desk/Archives/Mathematics/2009 March 27


 * 1) Number theory

= March 28 = Reference_desk/Archives/Mathematics/2009 March 28


 * 1) coordinate axes

= March 29 = Reference_desk/Archives/Mathematics/2009 March 29


 * 1) Kuratowski's theorem and Petersen's graph
 * 2) Interperating xkcd webcomic: "My normal approach is useless here"
 * 3) Comparative statistics subset of Inferential statistics
 * 4) Triangle sides

= March 30 = Reference_desk/Archives/Mathematics/2009 March 30


 * 1) Zero sets of continuous functions
 * 2) On the Kuratowski-Wojdysławski embedding.
 * 3) What is the best way to memorize strings of numbers without mnemonics?
 * 4) water pressure maintinence
 * 5) Primality / Composite testing & Divisor Table

= March 31 = Reference_desk/Archives/Mathematics/2009 March 31


 * 1) Finite order subgroups of CTG
 * 2) Motion Groups