Wikipedia:Reference desk/Archives/Mathematics/February 2007

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February 1

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 1

  1. complex integration or integration w.r.t. complex measure?
  2. adding every number from 1 to 100
  3. Statistics/Normal Distribution (moved here from Miscellaneous desk)

February 2

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 2

  1. pentiminoes
  2. Poincaré conjecture
  3. seeking hyperbolic cookbook
  4. triangle angle bisectors2
  5. Statistics/Normal Distribution
  6. Hyperbolic geometry
  7. summation of fractions
  8. Equations
  9. Twin Primes

February 3

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 3

  1. algebra 1

February 4

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 4

  1. Another triangle question
  2. Rectangular numbers
  3. Set of all integers

February 5

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 5

  1. What is a tangent plane to z=f(x,y) at (a,b)?
  2. This is a retarded question, but...
  3. Curves of quickest descent
  4. mark up question
  5. Infinity + 1

February 6

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 6

  1. Sterlings
  2. Sum of Normal distributions
  3. Kurtosis
  4. If it takes 20 men 6 hours to dig a hole, how long will it take 10 men to dig half a hole?
  5. Quadratic equations
  6. What's x and y
  7. ???
  8. Independent events

February 7

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 7

  1. Finding the center and radius of a circle
  2. Airy function coefficients
  3. Vandalism

February 8

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 8

  1. Do square root of -i exists?
  2. e-mail of ministry education of research center
  3. Algorithm for pairing players in round-robin chess tournament
  4. arcsin(\sqrt{2/3})

February 9

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 9

  1. intercept
  2. Vectors

February 10

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 10

  1. how do you add a topic?
  2. Calculation of chances of spherical spawn

February 11

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 11


February 12

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 12

  1. Mathematical basis of quantum physics
  2. How do you call 1/(1-x)?
  3. ???
  4. Frequency of occurrence

February 13

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 13

  1. exchanging the variable in logarithmic cubic quations
  2. Solving cubic equations
  3. Anyone bored?
  4. Can someone give me a question please?
  5. How to pay back infinite dollars for a finite debt

February 14

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 14

  1. Clearing up a few things
  2. Intergral of Cosine squared X
  3. Checking some derivatives
  4. Homework Help!!! (I know, just hear me out)

February 15

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 15

  1. matrices
  2. Regression Analysis

February 16

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 16

  1. Pull tabs
  2. Ellipses and hyperbolas
  3. Negative exponents and differential calculus help

February 17

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 17

  1. homework

February 18

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 18

  1. Notation confusions with physics and mathematics

February 19

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 19

  1. Best calculus textbook
  2. simplex method
  3. Math Formatting Help

February 20

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 20

  1. Fibonacci Sequences
  2. primitive of 1/ln(x)
  3. standard integrals
  4. a mile
  5. .3(9)

February 21

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 21

  1. division
  2. When two diagonizable matrices commute, are they simultaneously diagonizable?
  3. A riddle...

February 22

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 22

  1. Different answer to an integral than that given by Mathematica
  2. I doubt this is the right place to ask the question, but
  3. Lempel-Ziv-Welch compression algorithm example on Wikipedia
  4. mathematical practical applications
  5. Size of next prime number

February 23

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 23

  1. How to start?
  2. Check math for time dilation
  3. 270 degree triangles
  4. "Blackboard bold 1" with subscript

February 24

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 24

  1. Length of Curved part of a circle
  2. Software for category theory diagrams

February 25

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 25

  1. Lindemann-Weierstrass Theorem
  2. Triangle

February 26

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 26

  1. Several proofs of the Goldbach conjecture on arXiv, how come?
  2. What is the relationship between graph theory and topology?

February 27

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 27

  1. Proofs and computerized searches
  2. The next sequence
  3. This would drive you nuts
  4. A measure of non-concentricity - a unit or discriptor
  5. Squaring the circle

February 28

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Wikipedia:Reference_desk/Archives/Mathematics/2007 February 28

  1. Finding first digit
  2. ´how many miles are there in a kilometer? ´´´´
  3. Sequences derived from Fibonacci sequence.
  4. Interesting RIDDLE.. needs mathematical solution
  5. Archiving
  6. Pairwise permutation differences