A directory of useful objects found on the web for teaching Maths.
Sub-topics: Cartesian forms: (1) Complex arithmetic using polar form: (2) Factorisation of polynomials: (2) identify subsets of the complex plane determined by relations such as∣∣z−3i∣∣≤4z-3i≤4 (1) Roots of complex numbers: (1) The complex plane (the Argand plane): (1)