Math Formulas ► Complex numbers ► Sets of Numbers ► Set Identities
Math Formulas ► Sets of Numbers
Definitions:
N : Natural numbers
N0 : Whole numbers
Z : Integers
Z+ : Positive integers
Z− : Negative integers
Q : Rational numbers
C : Complex numbers
Formulas:
Natural numbers
(counting numbers )
N={1,2,3,…}
|
Whole numbers (
counting numbers with zero )
N0={0,1,2,3,…}
|
Integers ( whole
numbers and their opposites and zero )
Z={…,−2,−1,0,1,2,…}
|
Z+=N={1,2,…}
|
Z−={…,−3,−2,−1}
|
Z=Z−∪0∪Z
|
Irrational numbers:
Non repeating and nonterminating integers
Real numbers: Union
of rational and irrational numbers
Complex numbers:
C={x+iy | x∈R and y∈R}
|
N⊂N0⊂Z⊂Q⊂R⊂C
|
