From Wikipedia, the free encyclopedia

<< Dec | Mathematics desk | Feb >>

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.

Contents 1 January 1 2 January 2 3 January 3 4 January 4 5 January 5 6 January 6 7 January 7 8 January 8 9 January 9 10 January 10 11 January 11 12 January 12 13 January 13 14 January 15 15 January 16 16 January 17 17 January 18 18 January 19 19 January 20 20 January 21 21 January 22 22 January 23 23 January 24 24 January 25 25 January 26 26 January 27 27 January 28 28 January 29 29 January 30 30 January 31

[edit] January 1

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 1

1. Probability Formula

[edit] January 2

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 2

1. agorno-Karabakh
2. adian

[edit] January 3

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 3

1. All the King's marbles
2. Vertex operator algebra and vertex algebras - question
3. roduct
4. 1 plus 1

[edit] January 4

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 4

1. Nanosecands
2. When addition maps A×B->A but not A×A->A
3. A related question
4. 1 2 3...?
5. hilosophical question

[edit] January 5

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 5

1. Balls in a bag
2. Elementary questions in a plane
3. ymmetry operation in 3 dimensional space
4. Qualifying examination preparation
5. Proving the Viète formula
6. exponents
7. Casting of nines
8. Approximation of a simple curve by polygonal lines
9. Value of money in 1800's`
10. Equation of a line
11. Algebra/what is the equation?

[edit] January 6

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 6

1. n odds question
2. Golden Ratio
3. 0.333...=1/3?
4. Radians
5. ntegro differential equation
6. alculus Question - Optimization
7. Quadratic simultaneous equations

[edit] January 7

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 7

1. Conversion factor

[edit] January 8

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 8

1. Correlation between two binary variables
2. complex numbers
3. Area inside various curves
4. Identities
5. Automatic equation numbering in wiki

[edit] January 9

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 9

1. Reversible Gas Turbines
2. Generating permutations
3. Algorithm to generate permutations
4. recurrence relation

[edit] January 10

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 10

1. Latin squares
2. About polygon names

[edit] January 11

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 11

1. Statistics & Propagation of error with least square fits
2. Tetrahedron fractal
3. discount
4. Poisson question
5. Energy dissipation/viscosity in lagrangian mechanics.
6. Fractional reserve banking application
7. All 30 DJIA stocks posting gains/losses

[edit] January 12

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 12

1. Pie chart question

[edit] January 13

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 13

1. Does this equation mean anything?

[edit] January 15

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 15

1. conversions
2. Hi!
3. Class operators
4. Sample size vs. extreme observations
5. intergration
6. Twisted loop
7. Stock Options Question
8. Steinitz Replacement Theorem
9. Probability of retaining adjacent elements after randomization of a sequence

[edit] January 16

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 16

1. nverse of Erlang C formula
2. Algebra
3. symptote article

[edit] January 17

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 17

1. triangles
2. solution of triangles
3. 4d6-drop-lowest probability distribution
4. Age difference
5. To find nth term
6. Numerically Calculating Distances in Perspective
7. Like the factorial function, but with addition

[edit] January 18

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 18

1. Derivatives and integrals of the factorial function
2. how to do fraction notation

[edit] January 19

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 19

1. Multiplication
2. Need help with math problem involving limits
3. TeX rendering of g_1
4. Fastest model car
5. Inverse of double arrow?

[edit] January 20

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 20

1. Arcsin sqrt(x) transformation
2. Rounding to a rational number
3. mathematics
4. Name of a line

[edit] January 21

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 21

1. Converting fahrenheit to celsius
2. random walk
3. English word for property describing surface area to volume ratio
4. R^n is a hausdorff space.
5. divisibility by three -proof
6. I have 2 points of an exponential curve - how do I find the rest of the line
7.  ???

[edit] January 22

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 22

1. What are the exponential functions?
2. Linear equation solver program for TI 84+: need help
3. cone
4. Statistics/probability/counting question
5. Puzzle of the missing leprechaun
6. simple statistics question
7. Sequence

[edit] January 23

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 23

1. Shirt wrinkles
2. Cartesian coordinates
3. Binomial theorem
4. Another(s)
5. Find term by degree
6. Find fifth term
7. Simple complex number simplification
8. Partial sum

[edit] January 24

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 24

1. Overbraces/underbraces
2. steps to finding functions that satisfy certain rules
3. type of geometry?
4. taylor series and infinite differentiability
5. square feet
6. how to?

[edit] January 25

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 25

1. Optimization Problem
2. Circle Geometry Problem
3. Domain Question
4. Statistical analysis of edit sessions
5. Gödel and computer algebra systems
6. Geometry puzzle
7. Probability

[edit] January 26

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 26

1. 3+1=3
2. Confidence interval

[edit] January 27

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 27

1. Polygon
2. Free fall
3. math question
4. Proof that 1 = 2

[edit] January 28

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 28

1. algebra 1
2. algebra 1
3. Teaching yourself Calculus
4. Linear regression problem
5.  ???
6. Complex measures
7. Differentiation question

[edit] January 29

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 29

1. 5+4+3+2+1?
2. Eliminate summation from a complex formula
3. Expected sample
4. fastest shortcut mathematical formulas
5. Triangle angle bisectors

[edit] January 30

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 30

1. Radicals
2. Secondary school mathematic problem
3. Counting problem

[edit] January 31

Wikipedia:Reference_desk/Archives/Mathematics/2007 January 31

1. Alternative solution to Birthday Paradox
2. math question
3. Why solving problems like, "P versus NP" and others
4. Distributive property of gcd and lcm?
5. What is the increase percent