1.自然数--Natural Numbers
2.整数--Integers Numbers
3.有理数--Rational Numbers
Any number that equals the quotient of one integer divided by another non-zero integer, is a rational number, and represented by the set Q
4.无理数--Irrational Numbers
An irrational number cannot be expressed as the quotient of two integers
5.实数--Real Numbers
Rational and irrational numbers comprise the set of real numbers R
6.代数数与超越数--Algebraic and Transcendental Numbers
Numbers that are not roots to polynomial equations are transcendental numbers
7.虚数--Imaginary Numbers
8.复数--Complex Numbers
9.无穷--infinity
The term infinity is used to describe the size of unbounded systems. For example,there is no end to prime numbers: i.e. they are infinite; so, too, are the sets of other numbers.