Wikipedia:Reference desk/Archives/Mathematics/August 2010

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August 1

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 1

1. General topology, ultrafilters and maximal Ideals
2. Mapping R³ onto itself
3. arithmetic-geometric means
4. Summation Convention

August 2

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 2

1. The Generalised Solution to All Problems.
2. Amazing! OMG!
3. mathematics
4. Graph of (-2) to the power of n
5. Betting on the ponies
6. Constrained optimization problem

August 3

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 3

1. The Stone-Cech Compactification of a topological space
2. number of total order relations
3. Ambiguity in Number Theory
4. matrix maximizing algorithm
5. Tensor product
6. Polychora
7. LaTeX, more than one line of stuff underneath something

August 4

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 4

1. The Stone Cech Compactification
2. {Ø}
3. Geometry problem
4. Sloppy Notation?
5. Homeomorphisms of R³

August 5

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 5

1. Countable Compact Connected Hausdorff Space
2. how "unpredictable enough" system is useful?
3. creating diagonal matrix with only basic operations?
4. Conjectures
5. Axiom of choice again
6. Equivalence relation and partitions

August 6

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 6

1. Empirical maximum likelihood problem
2. Bessel's correction
3. Define a Pseudo-topology

August 7

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 7

1. Solve this equation
2. vectors
3. What is C^r topology and C^r distance in the space of differentiable maps C^r(M,N)
4. Probability question
5. Strange notation

August 8

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 8

1. What is C^r norm of the space of maps from X to Y
2. elliptic curves
3. Simple Set Theory

August 9

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 9

1. Stone-Cech Compactification
2. Total differential
3. what's wrong with this proof?
4. P versus NP problem for dummies

August 10

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 10

1. Different groups with the same order signature
2. E-books
3. Name of function
4. Transforming a principal stress tensor to maximum shear stress tensor?
5. Irreducible polynomial over the rationals
6. Divergence Theorem
7. Hyperbolas

August 11

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 11

1. Tricky complex number / infinite series problem
2. Duality (order theory)
3. Puzzle Cube solutions

August 12

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 12

1. Efficiency of a factorization algorithm
2. Spaces of Countable tightness - Is the following example OK?
3. Pearson product-moment correlation coefficient
4. Quadrilateral proof
5. Proof that P != NP
6. Strong Convergence of Operators
7. family of hyperplanes

August 13

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 13

1. Mathematicians and Math (What's the deal?)
2. permutations and combination
3. Unsolved problems
4. Topological 'closeness'

August 14

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 14

1. Cardinality of Topology
2. Rings, subfields and integral domains

August 15

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 15

1. Math Child Prodigies of 21st Century
2. Partial fractions
3. Rearranging a formula - getting confused!
4. Pivoting

August 16

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 16

1. trying to compare homicides
2. Laurent Series for ln(z) in annulus around z=0?
3. SO(n) vs Spin group
4. Some notions in topology
5. correlation conundrum
6. Identifying Multiples of low primes

August 17

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 17

1. Starting values for Root-finding algorithms (polynomials)
2. integral of sinx cosx
3. Simple math problem

August 18

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 18

1. Optics: 35mm focal length equivalent
2. Asymptotic order
3. Space Curves

August 19

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 19

1. Best Mathematicians of 2010
2. Is the argument of a given unary function a singleton?
3. Monoliths in 2001:A Space Odyssey
4. Good estimation of number of divisors d(n)
5. Nowhere dense subsets

August 20

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 20

1. How do you write this augmented matrix in reduced row echelon form?
2. Comprehensive Linear Algebra Book With Relations To Other Branches of Mathematics
3. simultaneous equation
4. Yoplait Yogurt commercial
5. Irreducible polynomials and the tower law

August 21

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 21

1. A function
2. Graphically plotting a flight course
3. Hiya!

August 22

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 22

1. arithmetic progressions and primes
2. Divergent Series

August 23

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 23

1. Logic puzzles
2. The Cantor Cube
3. PhD in Math
4. Convex subnetwork?
5. Magicicada lovers...
6. Puzzles

August 24

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 24

1. A term
2. Set formula conversion
3. Quaternion question

August 25

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 25

1. Help on ACT/SAT math
2. here's the non-answer, what is the question?
3. Line integrals

August 26

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 26

1. Volume of revolution
2. Inclined sit-up
3. Optimal decision making under uncertainty.
4. Assigning probabilities to curve fittings
5. how to integrate 1/(1+cosx)?
6. differential equation

August 27

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 27

1. Semicircles problem
2. Oldest open problem
3. sin(ln(z)) in annulus around z=0
4. Roots of unity for non-integer exponents
5. Non atomic poset
6. partial derivative
7. Calculus on science desk: atmospheric carbon scenario difference projections
8. mgf of the square of a standard normal random variable

August 28

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 28

1. A geometric sequence
2. Proper Form for Factoring Polynomial

August 29

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 29

1. linear transformation of standard normal random variables
2. Euler-Maruyama and Milstein schemes
3. Trig Question
4. http://en.wikipedia.org/wiki/Wikipedia:RDMA#Semicircles_problem

August 30

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 30

1. Graph question
2. Magic Numbers

August 31

Wikipedia:Reference_desk/Archives/Mathematics/2010 August 31

1. conditional probabilities
2. Which experiment is the best to perform?
3. May I ask a silly question; regarding the Calandar and how we work-out rates to pay ?
4. Random permutation
5. Elementary number theory problem