1. The Complex Number System
Real
Imaginary
Rational
Integers
Irrational
Whole
Natural

2. The Complex Number System
Natural Numbers:
{1, 2, 3, 4 …}
Whole Numbers:
{0, 1, 2, 3, 4 …}
Integers:
{… –3, –2, –1, 0, 1, 2, 3, …}

3. The Complex Number System
Rational Numbers:
Can be written as a RATIO of two Integers.
Any Terminating or Repeating decimal.

4. The Complex Number System
Rational Numbers:
Examples:

5. The Complex Number System
Irrational Numbers:
CANNOT be written as a RATIO of two Integers.
Any Non-Terminating and Non-Repeating decimal.

6. The Complex Number System
Irrational Numbers:
Examples:

7. The Complex Number System
Real Numbers:
All of the Above!
Imaginary Numbers:
Example: