12103 424 1 Imaginary Numbers are Real - Part 1: Introduction 12103 424 1 Math Imaginary Numbers are Real

10417 259 0 Imaginary Numbers are Real - Part 2: A Little History 10417 259 0 Math Imaginary Numbers are Real

10636 144 0 Imaginary Numbers are Real - Part 3: Cardan's Problem 10636 144 0 Math Imaginary Numbers are Real