The doublestruck capital letter Z, ,
denotes the ring of integers ...,
,
, 0, 1, 2, .... The symbol derives from the German
word Zahlen, meaning "numbers" (Dummit and Foote 2004, p. 1),
and first appeared in Bourbaki's Algèbre (reprinted as Bourbaki 1998,
p. 671). The ring of integers is sometimes
also denoted using the double-struck capital I,
.
Z
See also
C, C*, Counting Number, N, Natural Number, Q, R, Ring of Integers, Whole Number, Z-, Z+, Z*Explore with Wolfram|Alpha
References
Bourbaki, N. Éléments de mathématique: Algèbre, chapitres 1 à 3. Paris, France: Hermann, 1970. Reprinted as Elements of Mathematics: Algebra I, Chapters 1-3. Berlin, Germany: Springer-Verlag, p. 671, 1998.Dummit, D. S. and Foote, R. M. "Basics." §0.1 in Abstract Algebra, 3rd ed. Hoboken, NJ: Wiley, p. 1, 2004.Referenced on Wolfram|Alpha
ZCite this as:
Weisstein, Eric W. "Z." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Z.html