Wikipedia:Reference desk/Archives/Mathematics/September 2006

= September 1 = Reference desk archive/Mathematics/2006 September 1
 * 1) conversion
 * 2) 3D model from 2D pictures
 * 3) roman numerals
 * 4) Finance: Hagan volatility

= September 2 = Reference desk archive/Mathematics/2006 September 2
 * 1) Programming a calculator
 * 2) Mathematical expression determinator
 * 3) polynomials and symmetry
 * 4) Random processes

= September 3 = Reference desk archive/Mathematics/2006 September 3
 * 1) Calculator
 * 2) A blanket for a worm

= September 4 = Reference desk archive/Mathematics/2006 September 4
 * 1) It's homework, but I need help!
 * 2) Isaac Newton and the Binomial theorem

= September 5 = Reference desk archive/Mathematics/2006 September 5
 * 1) Polynomial Time
 * 2) n log n problem
 * 3) Teaching Maths
 * 4) Subsets
 * 5) History of logarithms

= September 6 = Reference desk archive/Mathematics/2006 September 6
 * 1) chess questions
 * 2) Chess: castling on opposite sides and pawn storms
 * 3) Decimal system
 * 4) Computing Integration vs. Searching Global Optimum Point
 * 5) hyperbolic perpendiculars
 * 6) norm minimization
 * 7) Partial Fractions
 * 8) 10 Ways math is used everyday
 * 9) converting

= September 7 = Reference desk archive/Mathematics/2006 September 7
 * 1) I'm absolutely stumped by this one
 * 2) Globe
 * 3) Swimming Pool
 * 4) Reversing skill to predict
 * 5) Determinant of an orthogonal matrix
 * 6) differentiation
 * 7) Calculus help - Limits
 * 8) Looking For Assistance To A Vexing Problem
 * 9) recurring

= September 8 = Reference desk archive/Mathematics/2006 September 8
 * 1) Sixty Degree Triangles
 * 2) converting
 * 3) Finding Spatial Derivatives
 * 4) Unusual Theories of Integration on Rn

= September 9 = Reference desk archive/Mathematics/2006 September 9
 * 1) Most complex strand of Math
 * 2) prime interest
 * 3) Aliquot Sequences

= September 10 = Reference desk archive/Mathematics/2006 September 10
 * 1) Answer to a Problem
 * 2) Happy Numbers
 * 3) Number of permutations with at least one 2-cycle
 * 4) SPPS graph
 * 5) Area Problem. Shapes etc.
 * 6) Earwig apartment complex
 * 7) calculate

= September 11 = Reference desk archive/Mathematics/2006 September 11


 * (No questions today)

= September 12 = Reference desk archive/Mathematics/2006 September 12
 * 1) Fermat's Factoring Method
 * 2) STATISTICS
 * 3) square centimeters
 * 4) octahedral rotational symmetry
 * 5) Calculus, Limits and First Principles.
 * 6) (Another) on Calculus, with Radians.
 * 7) Inverse
 * 8) Estimating a contour map from known spot heights.

= September 13 = Reference desk archive/Mathematics/2006 September 13
 * 1) Friday the 13th
 * 2) proability

= September 14 = Reference desk archive/Mathematics/2006 September 14
 * 1) Unexpected symbol behvior w/ LaTex
 * 2) Cylindrical sections
 * 3) Fun Game
 * 4) Recurrence Relations

= September 15 = Reference desk archive/Mathematics/2006 September 15
 * 1) Quadratic forms
 * 2) The red car or the blue car?

= September 16 = Reference desk archive/Mathematics/2006 September 16
 * 1) Exponential functions

= September 17 = Reference desk archive/Mathematics/2006 September 17
 * 1) Multidimensional stochastic processes
 * 2) Currency matters
 * 3) Sinc Filter?

= September 18 = Reference desk archive/Mathematics/2006 September 18
 * 1) Arithmetic pre-Fibonacci
 * 2) math questoin
 * 3) Klein bottle is its own 2-fold covering?
 * 4) Abstract -> Practical
 * 5) x+2^x=37

= September 19 = Reference desk archive/Mathematics/2006 September 19
 * 1) Outlier test for a inverse squared distribution
 * 2) Basic Statistics, Lottery Odds
 * 3) Can the sine function be represented as an exponential function?
 * 4) Finding coefficients of a series
 * 5) TI 83 Substitute
 * 6) Statistics Q
 * 7) Could use some tips for modelling a hot air balloon

= September 20 = Reference desk archive/Mathematics/2006 September 20
 * 1) Words for the terms in an implication/entailment
 * 2) San Juan
 * 3) Wythoff's Game
 * 4) Liquid Mixture Puzzle
 * 5) Math problem

= September 21 = Reference desk archive/Mathematics/2006 September 21
 * Ok, so we have the trigonometric sine, and then the hyperbolic sine...
 * 1) The rule of 17
 * 2) Probability Q
 * 3) Histogram
 * 4) Displacement, Velocity, Acceleration, Jerk, ...
 * 5) Bijection from Z^2 to Z

= September 22 = Reference desk archive/Mathematics/2006 September 22
 * 1) rational number is group under addition
 * 2) "difference between average mode mean?"
 * 3) chi-square in statistics

= September 23 = Reference desk archive/Mathematics/2006 September 23
 * 1) Identities
 * 2) Questions about the shape of the earth and distances
 * 3) Iterated sine function

= September 24 = Reference desk archive/Mathematics/2006 September 24
 * 1) Random Variable X and its Mean Cancelling
 * 2) the other delta function?

= September 25 = Reference desk archive/Mathematics/2006 September 25
 * 1) Dice-sum probability formula
 * 2) Density Curve (?)
 * 3) Parallelepipeds' volume
 * 4) Arc length
 * 5) Factoring A Polynomial
 * 6) Using the angle (in radians) and length to get coordinates
 * 7) Central Angle of a Tetrahedron

= September 26 = Reference desk archive/Mathematics/2006 September 26
 * 1) uncountable set
 * 2) countable set
 * 3) The quadratic formula to solve x
 * 4) equivalent class
 * 5) solve equations simultaniously
 * 6) Square Root?
 * 7) Pi
 * 8) Straight Angle's interior

= September 27 = Reference desk archive/Mathematics/2006 September 27
 * 1) Math Question
 * 2) Plural of 'series'
 * 3) What is this question called?
 * 4) Largest Number Contest.
 * 5) Math Composer ThIng
 * 6) Solids

= September 28 = Reference desk archive/Mathematics/2006 September 28
 * 1) 4D "volume" ?? (length^4)
 * 2) Why 1+1=2?
 * 3) valid range
 * 4) Graphing an indifference Curve
 * 5) Sine of a complex number?

= September 29 = Reference desk archive/Mathematics/2006 September 29
 * 1) Mixed trig / linear terms
 * 2) data
 * 3) Economic Bundles

= September 30 = Reference desk archive/Mathematics/2006 September 30
 * 1) Inequality Question
 * 2) Venn diagrams
 * 3) Function question