Wikipedia:Reference desk/Archives/Mathematics/January 2020

= January 1 = Reference_desk/Archives/Mathematics/2020 January 1


 * 1) When are class numbers of imaginary quadratic fields with discriminant 1-4*n odd?

= January 2 = Reference_desk/Archives/Mathematics/2020 January 2


 * 1) Sum of differences
 * 2) Entia multiplicata praeter necessitatem
 * 3) Including/excluding the first day

= January 9 = Reference_desk/Archives/Mathematics/2020 January 9


 * 1) The last digits of pi
 * 2) Zeroth
 * 3) What is a pickled beet?

= January 10 = Reference_desk/Archives/Mathematics/2020 January 10


 * 1) Odd perfect numbers

= January 11 = Reference_desk/Archives/Mathematics/2020 January 11


 * 1) Number of regions in regular polygon with diagonals drawn

= January 13 = Reference_desk/Archives/Mathematics/2020 January 13


 * 1) Compass and straightedge equivalent in three dimension?

= January 14 = Reference_desk/Archives/Mathematics/2020 January 14


 * 1) prove that for any event in algebra exists an event in the generated sigma

= January 16 = Reference_desk/Archives/Mathematics/2020 January 16


 * 1) Untitled

= January 19 = Reference_desk/Archives/Mathematics/2020 January 19


 * 1) Closest integer solution
 * 2) continuum hypothesis and machine learning

= January 22 = Reference_desk/Archives/Mathematics/2020 January 22


 * 1) Does a second pulley make something heavy easier to lift?
 * 2) Is eccentricity in disconnected graphs infinite?

= January 24 = Reference_desk/Archives/Mathematics/2020 January 24


 * 1) 8 x 10^67 =
 * 2) Question regarding sequences
 * 3) Product of primes