Wikipedia:Reference desk/Archives/Mathematics/September 2007

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September 1

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 1

1. Why do we trust our hash functions?
2. A Very Peculiar Practice
3. Infinitesimals
4. Age Problem

September 2

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 2

1. Fractals and Apophysis and Math...Oh My!
2. Russian roulette
3. Infinite Product

September 3

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 3

1. Random walk
2. Approximation of manifolds by tangent spaces
3. Commonwealth Star - Australian National Flag
4. Kite Prism

September 4

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 4

1. Will it pull free?
2. Is there palindromic numbers in decimals & fractions?
3. Binomial coefficient

September 5

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 5

1. Differentiation
2. Quine's method?
3. Question about zero
4. Math Riddle
5. Mad mathematician

September 6

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 6

1. Looking for a fallacy in statistics
2. Solving Inequalities

September 7

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 7

1. Chatin, turing machines and origin in coordinate systems.
2. Graphing Calculators
3. How many googols in a googolplex?
4. Syntax of multiple derivatives

September 9

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 9

1. No questions today
2. Maths is about numbers
3. Number bases
4. Chess books
5. TI-84+ equation solver

September 10

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 10

1. No questions today
2. Vector product
3. Quintics and Up
4. Probabilities
5. wording Exponential_function#Formal_definition
6. coordinates of a point
7. Modular arithmetic
8. Quadratic formula
9. Multiplication of Negative Integers

September 11

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 11

1. Rotations
2. Square bracket or small bracket
3. average value of a function's derivative
4. Acceptable Point-of-Service Survey Response Rates
5. Zeros of the Riemann Zeta Function location of Riemann zeta functions zeros.
6. Differentiating

September 12

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 12

1. Calculating uncertainty in linear regressions with uncertain data
2. NOT A NUMBER
3. Can someone please do this for me.

September 13

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 13

1. Adding up numbers with margins of error
2. sudoku help
3. Prove identity law
4. Solve

September 14

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 14

1. How does anyone feel about...
2. sum
3. question
4. Fourier analysis of resonance

September 15

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 15

1. Blackboard Bold
2. rainfall
3. Catenary
4. need some help.

September 16

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 16

1. What does this mean?

September 17

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 17

1. parabolica
2. logathrims - i dont get it (basic)

September 18

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 18

1. Factorization question
2. INTEGRALS
3. What do you call this shape?
4. Recursive integral
5. Physics momentum question
6. Inverse Trig Equations

September 19

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 19

1. Plotting software

September 20

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 20

1. Factoring a Binomial
2. packing in S3
3. convergence/divergence problem
4. standard deviation?
5. Statistics
6. Development of the decimal system
7. domain, range, co-domain, image
8. calculating probability of two events occurring at same time
9. pi

September 21

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 21

1. Sign Diagrams
2. mathematical fallacy

September 22

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 22

1. Need Major Math Skills Advice
2. Poisson Distribution
3. Sum of factors

September 23

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 23

1. DIFFERENTIAL EQUATION
2. Mathematical programming

September 24

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 24

1. Number of rows with at least one unique element
2. Looking for job to support my study at Rostock University
3. Contour lines for 3 fixed points
4. conversion of centimeters to inches

September 25

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 25

1. Why why why (functional value)
2. Simple Math Question -- Need Help -- Leap Years (?)
3. PRIME NUMBERS
4. Irrationality of the square root of 5
5. Schwarzschild Radius
6. "Hello"

September 26

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 26

1. Square mean root?
2. probability of a set containing a particular subset
3. MS Reference Specialty font has weird and pointless characters?
4. Tangent-line problem

September 27

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 27

1. Encryption using musical notation
2. Integral_of_secant_cubed
3. weight distribution

September 28

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 28

1. Estimating the variance-covariance matrix of a Multinomial function
2. So simple yet so hard
3. Most functions are not lines

September 29

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 29

1. History of Knuth–Morris–Pratt algorithm

September 30

Wikipedia:Reference_desk/Archives/Mathematics/2007 September 30

1. N-th power Legendre Symbol of an integer mod integer (Java)
2. It's homework, but I need help!
3. to the power of negative?
4. Dividing decimals?
5. What is the density of triangular-free numbers?