Wikipedia:Reference desk/Archives/Mathematics/April 2007

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April 1

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 1

1. the number of cows in great britain²
2. Fraction exponents
3. toyota symbol
4. Stuck on proving an inequality
5. Counting, continued
6. Approximating curves
7. Numbers
8. Binomial expansion for complex powers

April 2

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 2

1. is a sum of f(eigenvalue) meaningful?
2. Simple groups

April 3

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 3

1. time for thrown baseball to reach height s
2. how to generate prime numbers?
3. why cannot we find ln(-1)?
4. Geography
5. ox proportional hazards model

April 4

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 4

1. Foot and Penis Size
2. ifferentation
3. largest prime number
4. Angle problem

April 5

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 5

1. quare root of pi
2. Triangle integrals?
3. how to undestand this?
4. Initial Value Problems convergence etc
5. Famous function?
6. Volume of sphere
7. Proof that Ke^x for contants K are the only functions that are their own derivative
8. Which Statistical Test?

April 6

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 6

1. Sweeping the floor
2. Numbers not definable

April 7

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 7

1. oor Little Suzy
2. ew exciting developments ?

April 8

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 8

1. Advantages!
2. ig pi notation
3. Carpet cleaning
4. Factorial Problem
5. significant or nonsignificant

April 9

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 9

1. y = x^2
2. Is there are a statistical method like this?

April 10

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 10

1. Operations on PowerSeries
2. Logrithm? Solve for x in this?

April 11

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 11

1. Name for the set of all solutions
2. Volume
3. what is the fastest way to test prime aprime number?
4. Mathematical Transforms
5. Existence of a radical of a Lie algebra
6. Triangulation

April 12

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 12

1. maginary Interest Rate
2. Unfamiliar Curve
3. Statistical Significance in an Experiment with 3 Possible Results
4. Probability?
5. Whahaha? (horses and goats)

April 13

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 13

1. .9 repeating = 1???
2. Lottery number 1 to 6
3. Predictor -corrector stuffq

April 14

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 14

1. ynthetic division
2. Logical equation reduction
3. Linear equation solvers
4. average distance of a cube from its center

April 15

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 15

1. Math question
2. Line of Best Fit

April 16

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 16

1. i in other bases
2. 00% of 200
3. Divergent series
4. E(3)
5. Localisation of a graded ring, how can be it be a graded ring as well?.

April 17

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 17

1. Best Approximation
2. Americans can't count
3. Rolling Standard Deviation
4. Generalizing Hoelder's inequality

April 18

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 18

1. A power series
2. statistics:hypothesis testing, Type 1 and type 2 error
3. Why do 1+1=2?
4. Equvalence relation vs. partition
5. Partial knowledge

April 19

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 19

1. More Hölder inequality fun
2. Significant_figures

April 20

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 20

1. The integral of cosz / z(z^2 +8) dz?
2. Inter-rater agreement: Are there different alternatives for calculation of the confidence interval for kappa?
3. Freaky triangles - Where did those two squares come from???

April 21

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 21

1. How many different ways can I express 1,-1,1,-1, ... as a one-variable function?
2. Test question
3. Prime Numbers

April 22

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 22

1. Math Songs
2. Cubic Functions
3. Polynomial sequence
4. USB symbol
5. Quadratic Equations
6. uploading of math diagrams

April 23

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 23

1. E(max{d20+x₁,d20+x₂,...,d20+x_n})
2. what is?
3. Connections within a hypercube
4. Dirichelet eta and Riemann Zeta

April 24

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 24

1. PrefixSpan Algorithm
2. orrelated random walks
3. on-random number generator

April 25

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 25

1. Conic Section
2. Inverse of NxN Matrices Mod M (Hill cipher)
3. Help with surds
4. Factors

April 26

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 26

1. Refunding overpayments from accounts receivable
2. Dimension of orthogonal complements
3. Log functions
4. Solve an equation of 4th order

April 27

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 27

1. choice function
2. ums of cubes
3. ore average than average
4. Quarternions as applied to computer graphics

April 28

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 28

1. Iterative method: Cost of moving and cost of evaluation
2. solvable subgroup
3. cyclic group
4. Initial value problems
5. meaning of k in combinations and permutions

April 29

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 29

1. aths Competition
2. math property
3. More qualifying examination preparation
4. Error in Number Theory book?

April 30

Wikipedia:Reference_desk/Archives/Mathematics/2007 April 30

1. Analysis exercise bank
2. Difference?
3. 1+1=2 ... why???