9524 424 1 Imaginary Numbers are Real - Part 1: Introduction 9524 424 1 Math Imaginary Numbers are Real

8297 259 0 Imaginary Numbers are Real - Part 2: A Little History 8297 259 0 Math Imaginary Numbers are Real

8521 144 0 Imaginary Numbers are Real - Part 3: Cardan's Problem 8521 144 0 Math Imaginary Numbers are Real