A Note on Teaching Complex Numbers

S Sivakumar and Bharath Sethuraman

Divsion of Sciences, Krea Unviersity, Sricity, Andhra Pradesh

Complex numbers can be introduced in a more intuitive and accessible manner using geometric ideas. In this note, we present such an approach wherein the process of rotation on a plane, well known to students, is used as the prototypical notion to motivate the multiplication rule for complex numbers.