Wikipedia:Reference desk/Archives/Mathematics/September 2014

= September 1 = Reference_desk/Archives/Mathematics/2014 September 1

= September 3 = Reference_desk/Archives/Mathematics/2014 September 3

= September 4 = Reference_desk/Archives/Mathematics/2014 September 4

= September 7 = Reference_desk/Archives/Mathematics/2014 September 7

= September 7 = Reference_desk/Archives/Mathematics/2014 September 7


 * 1) Denumerable sets of trigonometric polynomials
 * 2) What's the full pi number

= September 8 = Reference_desk/Archives/Mathematics/2014 September 8


 * 1) Does the Witch of Agnesi really have a well-defined centroid?
 * 2) Greatest common divisor

= September 10 = Reference_desk/Archives/Mathematics/2014 September 10


 * 1) Friends meeting at the park

= September 11 = Reference_desk/Archives/Mathematics/2014 September 11


 * 1) is any of Spinoza's Ethics mathematically rigorous? (to the standard of published proofs.)
 * 2) Statistical statement
 * 3)  Confusion Over Open Problem's Meaning
 * 4) puzzle from game question...

= September 13 = Reference_desk/Archives/Mathematics/2014 September 13


 * 1) 3rd and 4th degree Bézier curve
 * 2) Verifying that the cts dual space is subspace of the algebraic dual space

= September 14 = Reference_desk/Archives/Mathematics/2014 September 14


 * 1) Star angle

= September 15 = Reference_desk/Archives/Mathematics/2014 September 15


 * 1) closed group of operations
 * 2) Graph theory:
 * 3) Relation theory:
 * 4) determine interior angle of triangle give the coordinates of the vertices.

= September 17 = Reference_desk/Archives/Mathematics/2014 September 17


 * 1) A Boolean algebra

= September 18 = Reference_desk/Archives/Mathematics/2014 September 18


 * 1) Mathematical Problems Immediately Relevant To Medicine
 * 2) Logic Puzzles

= September 19 = Reference_desk/Archives/Mathematics/2014 September 19


 * 1) is midrange = midpoint?
 * 2) AntiDerivative
 * 3) "loops" in common-core math

= September 22 = Reference_desk/Archives/Mathematics/2014 September 22


 * 1) Why does this calculates the square root of two?
 * 2) Real Analysis: bounded set

= September 23 = Reference_desk/Archives/Mathematics/2014 September 23


 * 1) Universal algebra based on free logic
 * 2) Trig sum

= September 25 = Reference_desk/Archives/Mathematics/2014 September 25


 * 1) Linear equation perfect square solutions

= September 26 = Reference_desk/Archives/Mathematics/2014 September 26


 * 1) Approximation of the cosine function

= September 27 = Reference_desk/Archives/Mathematics/2014 September 27


 * 1) Decimal exponents

= September 30 = Reference_desk/Archives/Mathematics/2014 September 30


 * 1) Quadratic expression evaluates to perfect square
 * 2) Automatic calculation with Excel