from rosen's discrete mathematics and its applications, ed, chapter p. - : it seems to me that both of them are talking about partitioning a set of n ... combinatorics discrete-mathematics combinations set-partition asked feb at : j. doe bronze badges votes answer views notation for partitions of sets...
silver badges bronze badges votes answers views eliminate the multiplier of lagrange i am reviewing the method of lagrange multiplier and this time it strikes me as to why don't we just eliminate the multiplier $\lambda$ once and for all and just work with the remaining equations - ... lagrange-multiplier...
$. consider the $... polynomials complex-numbers roots-of-unity asked dec ' at : tanny sieben silver badges bronze badges votes answer views how to pick out numbers $ \pmod $ with a root of unity (possibly sixth)?...
few months ago, and i've noticed that when i'm playing something, the strings make loud clicky sounds when they hit the fret. this happens especially when i'm trying to play ... bass-guitar electric-bass-guitar fretboard asked jan ' at : sodiumnitrate gold badges silver badges bronze badges vote answer...
from various groups into $gl_n(\mathbb{c})$. for example, i think i understand all homomorphisms from $\mathbb{z} \to gl_n(\mathbb{c})$. i believe ... abstract-algebra group-theory abelian-groups group-homomorphism asked dec ' at : john doe gold badges silver badges bronze badges votes answer views...
badges bronze badges vote answers views ways to cross out $n^ / $ squares on a $n imes n$ chessboard how many patterns $p_n$ are there to cross out $n^ / $ squares on a $n imes n$ chessboard, so that the number of crossed out squares in each row and each column are all even?...