8761 424 1 Imaginary Numbers are Real - Part 1: Introduction 8761 424 1 Math Imaginary Numbers are Real
7777 259 0 Imaginary Numbers are Real - Part 2: A Little History 7777 259 0 Math Imaginary Numbers are Real
7951 144 0 Imaginary Numbers are Real - Part 3: Cardan's Problem 7951 144 0 Math Imaginary Numbers are Real
