Wikipedia:Reference desk/Archives/Mathematics/May 2008

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May 1

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 1

1. Calculus/Dynamics
2. Sequences
3. At what values of n fraction is an integer?
4. Factorial Designs
5. Inverse Laplace transform
6. Defining the cross product

May 2

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 2

1. Analytic function
2. GMAT score as percentile
3. Derivation of
4. Is the Set theory useful for anything practical?

May 3

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 3

1. Involution
2. Preservations in group homomorphisms
3. Infinity
4. change of basis for square matices

May 4

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 4

1. standard deviation
2. Norm Equivalence
3. Elliptic curve group addition formula

May 5

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 5

1. Complex number
2. Automata theory
3. A perfect sphere and a perfect plane
4. A Trigonometric Identity
5. Log?

May 6

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 6

1. "Continuity" of integrals of L¹ functions
2. Intimate with integrals
3. Similar matrices
4. Equation
5. Kuritosis

May 7

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 7

1. Calculus
2. Recursively defined sets

May 8

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 8

1. Integration Problem
2. JC-1 H2 Maths: Partial Fractions headache
3. Another integration problem
4. No antiderivative
5. Proof Generator?

May 9

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 9

1. Indeterminate relational operator

May 10

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 10

1. Nodes of Vibrating Plate
2. Parabolas and Lines
3. Number of unique outcomes for 5 dice

May 11

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 11

1. Permutation notation
2. Equations of lines
3. squares crossed by trhe diagonal
4. Math question
5. Trigonometry
6. What does it mean when a frequency distribution is uniform?

May 12

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 12

1. Odds of winning in Lotto 6/49
2. Re: Trigonometric functions
3. Mathematics-Quadratic Equations
4. Left/right division
5. Connection between the definition of the unit sphere and the real-projective plane
6. Non-degenerate conic in the real-projective plane
7. Combinatorial problem
8. nets for making geometric solids

May 13

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 13

1. Unique Factorization Domains
2. Gerschgorin Theorem and Taussky's Result
3. Proving Integrability
4. Sum
5. Logic circuit design
6. Homeless Statistics in China
7. Mathcad functions
8. Pi
9. Numb3rs

May 14

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 14

1. what is the diffrent with prism and pyramid?
2. regression toward the mean
3. Spearman-Rho, and Kruskal-Wallis tests

May 15

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 15

1. Notation
2. Variance from cdf
3. The biggest family-tree you've ever seen...
4. Generated and induced σ-algebras

May 18

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 18

1. How can Pi exist.
2. Parity of powers
3. Coin toss
4. probability
5. Test

May 19

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 19

1. chemical mathematics
2. Days of the Week for BC

May 20

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 20

1. Neg. Binom. GLM question
2. Partial differential equation
3. Standard deviations and probabilities
4. Fields
5. Geometry question on angles
6. Game show theorem
7. Momentum and vectors - Mechanics

May 21

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 21

1. Complements of finite-dimensional subspaces
2. proof for a.b=lcm x gcd
3. set theories
4. Odd trig/geometry question

May 22

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 22

1. Integrating parametric equations
2. [[Wikipedia:Reference_desk/Archives/Mathematics/2008 May 22#Solution for Tan(x)=2x. {0<x<Pi.2F2}|Solution for Tan(x)=2x. {0<x<Pi/2}]]
3. Flux across surface.
4. Four-dimensional pyramid
5. Figuring "Final Average"

May 23

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 23

1. wikipedia and power laws
2. Variation in statistics
3. Counting problem
4. What is the formula for exponential growth/decay?

May 24

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 24

1. Drawing Graphs (Graph Theory, not Functions)
2. Connected and Totally Bounded metric spaces
3. Surprise!
4. Finding Nash equlibrium
5. [[Wikipedia:Reference_desk/Archives/Mathematics/2008 May 24#Roots of $f(t)<.2Fmath>|Rootsof<math>f(t)$]]

May 25

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 25

1. Game theory symbol meaning
2. variance of t-distribution

May 26

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 26

1. Symbols question
2. Why is this notation used?
3. Function Graph

May 27

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 27

1. How to make a pattern board for a cone shape?
2. Maths in 21st century
3. Latex Typesetting
4. Defining outliers
5. Polynomial-time reduction from SAT to CNF-SAT
6. Pentagon, golden ratio
7. Missing-block triangle
8. Angles

May 28

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 28

1. Season
2. Mappings
3. Diagonalizing a matrix.
4. Set Notation

May 29

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 29

1. Re: a function problem
2. Different differences
3. Another stupid question; graphs of functions
4. Probability
5. Velocity
6. Linear algebra without vector spaces

May 30

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 30

1. Mathematicians objecting Cantor
2. n > 3, n = Number Of Dimensions

May 31

Wikipedia:Reference_desk/Archives/Mathematics/2008 May 31

1. A Decreasing Sequence
2. shortest distance in a circle
3. Mordell Curve
4. Armonic functions
5. game theory question about tennis
6. Permutations