7961 424 1 Imaginary Numbers are Real - Part 1: Introduction 7961 424 1 Math Imaginary Numbers are Real

7191 259 0 Imaginary Numbers are Real - Part 2: A Little History 7191 259 0 Math Imaginary Numbers are Real

7321 144 0 Imaginary Numbers are Real - Part 3: Cardan's Problem 7321 144 0 Math Imaginary Numbers are Real