Wikipedia:Reference desk/Archives/Mathematics/March 2012

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March 1

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 1

1. Hauntings & Mental Health (homework question)

March 2

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 2

1. Hilbert transform

March 3

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 3

1. Can't figure out probability mistake
2. Getting my head around tensors
3. Rotation vs. orbit
4. Dividing by 3, 6, prime or odd numbers other than 5, 25, 125 etc.?
5. Formal proof that the number of arcs in a tree is one less than the number of nodes.
6. Standard Deviation and Excel/SPSS
7. are consistent self-references usually allowed

March 4

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 4

1. Harmonic mean of exponential variables
2. Grouping in statistics
3. weird result

March 5

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 5

1. What does "diddle factor" mean?

March 6

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 6

1. unwrapped script
2. Proof that a series tends to zero
3. what is the problem with this proof that 2=3
4. Solving all quintics by Algebraic means

March 7

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 7

1. weighted random walk

March 8

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 8

1. 10 of 26 of 53!
2. Showing that something is a tensor
3. what is the actual percent advantage in the problem listed?
4. vapour pressure

March 9

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 9

1. Logarithm problems

March 10

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 10

1. Extending proof to uncountable subsets of R
2. Eccentricity of a conic section
3. Big or Little

March 11

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 11

1. Existence and uniqueness of solutions
2. Quantum mechanics for mathematicians
3. Dimensions in vector spaces

March 12

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 12

1. Quantifying heterogeneity
2. Need the answer of this question in algebra
3. Extending theorem to uncountable sets
4. Tensors
5. who sets racetrack odds and how?
6. applications of linear functions

March 13

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 13

1. Vectors
2. Using Euler's theorem to find the last digits of a tetration
3. A week in Planck times

March 14

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 14

1. Names of these functions
2. Intuitive interpretation of Lebesgue integrals

March 15

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 15

1. Probability question
2. Convert Hamiltonian path problem into subset sum problem and vice-versa

March 16

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 16

1. Dividing a square into triangles

March 17

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 17

1. Name the terms

March 18

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 18

1. Infinite sum
2. Minesweeper
3. Cominatorics question
4. Latex question

March 19

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 19

1. Partitioning a square into five subsquares

March 20

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 20

1. Name for a vector space with a zero quadratic form
2. Modelling with Beta-Distributions

March 21

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 21

1. could you tell me if this is correct

March 22

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 22

1. Sleeping Beauty problem
2. Ability to write complex numbers as real + imaginary (x +iy)

March 23

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 23

1. Is it possible to use a repeating decimal to fraction converter to store information?
2. More direct proof?

March 24

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 24

1. coinflip story doesn't add up

March 25

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 25

1. relations between symmetries
2. Coordinate transformation
3. Free software for plotting data
4. Best angle for launching a projectile for the longest distance

March 26

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 26

1. Special:Random
2. TRI AN GLE IN E QUAL I TY
3. Adding exponentials
4. Show that these metrics are equivalent

March 27

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 27

1. Trigonometry practice questions
2. Help me name or find the existing name for this geometric concept!
3. Homomorphisms from GL(n,Z) into a symmetric group?

March 28

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 28

1. Determining whether a given polynomial is square.
2. An apparent counter-example against the completeness of Presburger Arithmetic:
3. Implementing RK45 Correctly

March 29

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 29

1. math onto graphmatica
2. A notation for Hadamard product

March 30

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 30

1. Deciding whether a pentagon is cyclic
2. World Population
3. Lottery odds

March 31

Wikipedia:Reference_desk/Archives/Mathematics/2012 March 31

1. A maximal theory for solving physical problems
2. Differential Equations
3. Highly leveraged small financial bets as an alternative to lottery tickets