12163 424 1 Imaginary Numbers are Real - Part 1: Introduction 12163 424 1 Math Imaginary Numbers are Real
10478 259 0 Imaginary Numbers are Real - Part 2: A Little History 10478 259 0 Math Imaginary Numbers are Real
10709 144 0 Imaginary Numbers are Real - Part 3: Cardan's Problem 10709 144 0 Math Imaginary Numbers are Real
