Wikipedia:Reference desk/Archives/Mathematics/July 2010

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July 1

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 1

1. mathematical outcome to simple problem
2. searching for a solution

July 2

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 2

1. probability inequalities
2. Examples of linear, nonlinear. or chaotic time series

July 3

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 3

1. Notation for a non-derivative with prime (')

July 4

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 4

1. Second Order Differential Equations
2. Partial Derivatives

July 5

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 5

1. Clifford Algebra Question
2. Integration

July 6

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 6

1. 6 sided die different from the standard
2. Equating an exponential function to a linear function
3. Sum of exponentials
4. Connections and Differential Forms
5. Using the moment generating function to find E(y)

July 7

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 7

1. Equation to solve
2. Rank and stuff
3. Quine's NF Set theory
4. Calculating asymetric confidence intervals for truncated rating scale data
5. LIFO v. FIFO
6. Poisson distribution

July 8

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 8

1. basic probability
2. Kernel and Range of an Operator
3. Non-Hamiltonian k-critical graph
4. Rational numbers with integer sums
5. probability
6. Probabilistic proof of the squared triangular number identity.
7. Tweaked Konigsberg

July 9

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 9

1. Ackermann function
2. Looking for a more intuitive way for expressing some property of some sets (and of a formula associated with them).
3. Differential Forms
4. speed cameras versus timestamped photos at 2 points.

July 10

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 10

1. Online virtual Turing machine
2. Cosets
3. 1+1=1
4. Girls, buses, cats AGAIN.

July 11

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 11

1. Simple Probability
2. ordinals
3. Simplifying Radical Expressions
4. Angle
5. Automorphism group of a Hilbert space
6. Mathematical induction
7. Gabriel's Horn

July 12

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 12

1. order of growth
2. Calculus/Derivatives
3. Trig question
4. integers solutions

July 13

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 13

1. the value of 0/0

July 14

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 14

1. Free stuff
2. Polish notation
3. Rubik's cube group
4. Help with a definite integral
5. Denesting Radicals

July 15

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 15

1. Testing the bias on a coin
2. The arcsin for numbers >1
3. Comparing two averages
4. Theoretical computer science
5. Implicit function theoem
6. Riddle (of my own)

July 16

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 16

1. Fixed Point
2. Linear independence over complex numbers of modular forms of different weights
3. Millennium Prize Problems

July 17

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 17

1. Half pennies on credit cards
2. Greedy tricolorability
3. Interest calculations
4. ACT practice test question
5. Algorithm to combine trees?
6. Mathematical game

July 18

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 18

1. Hyperbolic geometry
2. Ancient Greek rejection of the fourth power

July 19

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 19

1. Finding text in all of the universe
2. "Fundamental theorem of arithmetic"?
3. Vector Spaces
4. 3D equivalent of an arc/circular sector

July 20

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 20

1. Chess books
2. Dot product
3. y = dy/dx + x

July 21

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 21

1. Planck's constant divided by wavelength
2. are there any axioms you can't get rid of?
3. what if there were a proof
4. codimension?
5. Setting up triangles for the ambiguous case

July 22

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 22

1. Integration by substitution
2. Dynamic Programming
3. Barrow on Archimedes

July 23

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 23

1. Mathematics
2. Inverse Gabriel's Horn?
3. kind of a weird question...
4. advancing mathematics with little mathematics training

July 24

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 24

1. List of Permutations in GAP
2. Cardinality

July 25

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 25

1. The probability that Bayes theorem is correct
2. Nash Equilibrium for infinite game?

July 26

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 26

1. Finding the inverse of a matrix
2. LaTeX Symbols
3. Boundary between two spatial regions

July 27

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 27

1. Uniform mapping function
2. Infinite sequence

July 28

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 28

1. Hyperbolic reflection

July 29

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 29

1. 65536 -- power of two without 1, 2, 4, or 8 in decimal representation
2. Number of combinations
3. Differential Geometry Book Recommendation
4. Counting number of certain types of elements in symmetric group
5. basic algebra
6. Tetrahedron

July 30

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 30

1. Bayesian inference – probability convergence to zero or 1.
2. integrate sin(x)^2*cos(x)^2
3. Tits group
4. Determining an eigenvalue

July 31

Wikipedia:Reference_desk/Archives/Mathematics/2010 July 31

1. Axiom of choice
2. problem with inequality
3. Simplicial Homology
4. Washing line mathematics
5. Weighing scales
6. Summation image