Wikipedia:Reference desk/Archives/Mathematics/August 2009
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August 1
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 1
August 2
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 2
- Image of a set of measure 0
- Normal distribution and chi-square test project - Please help
- 0 expected value of a bet = impossible to make money (guaranteed)? why?
August 3
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 3
- how many ways are there of arranging 8 pairs of socks on a clothesline so that no two socks from a pair are next to each other?
- what is a quarternion?
- Another lovely complex integral
August 4
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 4
- Pseudoscalar
- Showing a function is right continuous
- Solving a system of matrix equations
- What angle do you need to get a certain length of an arc?
- 4D analog of a 3D cross-product.
August 5
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 5
- A question about geographical coordinates and significant digits
- Mandelbrot set
- twice as wide
- Gravity and Mass
August 6
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 6
- Rational function?
- Matrix function
- Easy contour integral
- Another integral
- The math behind general relativity
August 7
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 7
August 8
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 8
- Alternative proof that a square matrix is similar to its transpose
- Absolute Values with Factorials
- Set of points with density 1
August 9
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 9
- Constructing Triangles
- the 24 cells of the 24-cell and their intersections
- Functional square root
- Finding a Permutation Matrix
August 10
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 10
August 11
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 11
August 12
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 12
- Using the δ/ε method to show that lim(x→0) of 1/x does not exist
- Random Walk
- Using the identity theorem
August 13
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 13
- Absolute continuity
- Radius and Volume
- ordered sets and order types
- Vogel's approximate method
- Sudoku Puzzles
August 14
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 14
- Infinity--Question/comment/request for comments
- Regifting Robin
- Showcase Showdown strategy
- What's the difference?
- Lipschitz, absolute continuity
- Measurable functions/Derivatives
August 15
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 15
- L^p(R^n) limit
- N disjoint solutions to N-queens puzzle
- What is summation of r! from r=1 to r=n?
- Differential definition
- Ricci Tensor
- P(n+1) more likely to be prime if P(n) is?
August 16
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 16
- Bounded linear operator on sigma-finite measure space
- Entropy
- Please fill the gaps in a table
- Learning about multiple regression online
- Uniformly convergent sequence of polynomials
August 17
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 17
- Tuk-tuks
- QQ vs. YoY
- quick maths question
- How many eighth degree monic polynomials are such that...
- question about probability
- round robin tournament
August 18
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 18
August 19
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 19
August 21
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 21
August 23
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 23
- Pi
- Lagrangian is invariant
- Proof?
- Average
- A game with positions expressable as vectors
- BN-pairs: conjugate generators weyl group give double cosets of same size
August 24
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 24
August 25
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 25
August 26
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 26
- Computer-aided proofs since Appel-Haken
- Definition of Kähler manifolds
- can u solve this
- Commutivity of addition
- Associativity of composition
August 27
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 27
- A weird thing
- Uncountability of R
- Is .99999999999 repeating=1?
- Line bundles and cohomology
- What is an axiom?
- Diophantine variances
August 28
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 28
August 29
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 29
- Why use Poisson distribution as an approximation to binomial?
- The Tychonoff theorem
- Question about sets
- Average Value of a Function
- Fun little problem
- Fun little macro with a (math) issue...
August 30
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 30
- Principle of mathematical induction
- Big O of sin x
- What mathematics things are vs. what mathematical things do
- PUZZLING PUZZLE
- Sudoku boards and groups with 9 elements
- Random trig question
August 31
[edit]Wikipedia:Reference_desk/Archives/Mathematics/2009 August 31