Numbers in Python can be of four types:
Integers such as 2 which are just
whole numbers.
Long integers, which are just bigger whole numbers.
Floating point numbers (or floats)
such as 3.23 and 52.3E-4.
The E notation indicates power of 10. In
this case, 52.3E-4 means 52.3 *
10-4.
Complex numbers such as (-5+4j) and
(2.3 - 4.6j).