Wikipedia:Reference desk/Archives/Mathematics/January 2019

= January 4 = Reference_desk/Archives/Mathematics/2019 January 4


 * 1) Factoring trigonometric polynomials

= January 7 = Reference_desk/Archives/Mathematics/2019 January 7


 * 1) What's the most ambiguous decimal year? (UTC)

= January 8 = Reference_desk/Archives/Mathematics/2019 January 8


 * 1) Angular accleration definition

= January 9 = Reference_desk/Archives/Mathematics/2019 January 9


 * 1) 24-cell question

= January 15 = Reference_desk/Archives/Mathematics/2019 January 15


 * 1) Algebraic integers and (ordinary or Gaussian) rationals

= January 17 = Reference_desk/Archives/Mathematics/2019 January 17


 * 1) Injective cubic polynomial functions

= January 18 = Reference_desk/Archives/Mathematics/2019 January 18


 * 1) Most recent Mathematics taught in Secondary School (ages 11-17)?

= January 22 = Reference_desk/Archives/Mathematics/2019 January 22


 * 1) Chance of seeing any adjacent pairs in Powerball Lottery

= January 26 = Reference_desk/Archives/Mathematics/2019 January 26


 * 1) Powerball Paradox of Probability

= January 28 = Reference_desk/Archives/Mathematics/2019 January 28


 * 1) Linear equations
 * 2) Mathematical analysis
 * 3) ideal related

= January 29 = Reference_desk/Archives/Mathematics/2019 January 29


 * 1) Truth vs provability
 * 2) Who was the first to discover the well known formula $cis(a+b)=cis(a)cis(b)$ ?

= January 31 = Reference_desk/Archives/Mathematics/2019 January 31


 * 1) HMM: Efficiently calculating a probability of a subsequence given the next hidden state