Names for the number 0 in English English speaking countries. However this has not become the universal descriptor because as Douglas Coupland pointed out early in the decade "[Noughties] won't work because in America the word 'nought' is never used for zero, never ever". The American music and lifestyle magazine Wired favoured "Naughties'", which they claim was first proposed by the arts collective Foomedia in 1999. However, the term "Naughty Aughties" was suggested as far back as 1975 by Cecil Adams, in his column The Straight Dope. In scores for sporting events, in particular tennis, association football, the number 0 has the very specialized names "love", and
Zero of a function generally used when there are infinitely many zeros, and they have some non-trivial topological properties. For example, a level set of a function formula_1 is the zero set of formula_26. The cozero set of formula_1 is the complement of the zero set of formula_1 (i.e., the subset of formula_23 on which formula_1 is nonzero). In algebraic geometry, the first definition of an algebraic variety is through zero sets. Specifically, an affine algebraic set is the intersection of the zero sets of several polynomials in a polynomial ring formula_31 over a field. In this context, a zero set is sometimes called