- Writing complex numbers in different forms
- Changing complex numbers into polar form
- Complex conjugate
- Simplifying x + iy form – Part 1
- Simplifying x + iy form – Part 2
- Absolute value of a complex number
- Complex equation
- Euler’s formula [PDF only]
- Powers and roots of complex numbers – De Moivre’s theorem
- Applications of complex numbers – 2D vector
- Applications of complex numbers – Electricity
- Applications of complex numbers – RL circuit (also on phase shift between V and I)