Wikipedia:Reference desk/Archives/Mathematics/March 2009

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style="background: #5D7CBA; text-align: center; font-family:Arial; color:#FFFFFF;" | Welcome to the Wikipedia Mathematics Reference Desk Archives
The page you are currently viewing is a monthly archive index. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages.

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= March 1 =

Wikipedia: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 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 2

1. A good book in Tensor Calculus?

= March 3 =

Wikipedia: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 =

Wikipedia: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 =

Wikipedia: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 =

Wikipedia: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 =

Wikipedia: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 =

Wikipedia: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 =

Wikipedia: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 =

Wikipedia: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 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 11

1. number of spanning trees of K_n-e

= March 12 =

Wikipedia: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 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 13

1. Products of Multiple Geometric Series

= March 14 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 14

1. What!

= March 15 =

Wikipedia: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 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 16

1. Self-Dual Tessellation
2. Converse to Heine-Cantor theorem

= March 17 =

Wikipedia: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. [http://s5.tinypic.com/1zodz5w.jpg Trapezoid solving an angle]

= March 18 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 18

1. F-statistic application
2. AIME
3. Prime number problem

= March 19 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 19

1. Functional Convergence
2. Differential Equation

= March 20 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 20

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

= March 21 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 21

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

= March 22 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 22

1. Value of an L-function
2. Birthdays

= March 23 =

Wikipedia: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 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 24

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

= March 25 =

Wikipedia: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 =

Wikipedia: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 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 27

1. Number theory

= March 28 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 28

1. coordinate axes

= March 29 =

Wikipedia: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 =

Wikipedia: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 =

Wikipedia:Reference_desk/Archives/Mathematics/2009 March 31

1. Finite order subgroups of CTG
2. Motion Groups