Wikipedia:Reference desk/Archives/Mathematics/May 2008

= May 1 = 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 = 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 = 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 = Reference_desk/Archives/Mathematics/2008 May 4


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

= May 5 = 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 = 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 = Reference_desk/Archives/Mathematics/2008 May 7


 * 1) Calculus
 * 2) Recursively defined sets

= May 8 = 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 = Reference_desk/Archives/Mathematics/2008 May 9


 * 1) Indeterminate relational operator

= May 10 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = Reference_desk/Archives/Mathematics/2008 May 19


 * 1) chemical mathematics
 * 2) Days of the Week for BC

= May 20 = 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 = 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 = Reference_desk/Archives/Mathematics/2008 May 22


 * 1) Integrating parametric equations
 * 2) Solution for Tan(x)=2x. {0<x<Pi/2}
 * 3) Flux across surface.
 * 4) Four-dimensional pyramid
 * 5) Figuring "Final Average"

= May 23 = 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 = 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) Roots of $f(t)$

= May 25 = Reference_desk/Archives/Mathematics/2008 May 25


 * 1) Game theory symbol meaning
 * 2) variance of t-distribution

= May 26 = Reference_desk/Archives/Mathematics/2008 May 26


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

= May 27 = 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 = Reference_desk/Archives/Mathematics/2008 May 28


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

= May 29 = 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 = Reference_desk/Archives/Mathematics/2008 May 30


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

= May 31 = 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