What you can do

• Add, subtract, multiply and divide with exact answers
• Find the modulus, the argument, the conjugate, and polar and exponential forms
• Raise to a power and find n-th roots by De Moivre's theorem
• Exact argument for multiples of π/6 and π/4, with decimals otherwise
• See numbers as arrows on an Argand diagram, and roots round a circle
• Practise with random questions and worked solutions