9390 424 1 Imaginary Numbers are Real - Part 1: Introduction 9390 424 1 Math Imaginary Numbers are Real

8214 259 0 Imaginary Numbers are Real - Part 2: A Little History 8214 259 0 Math Imaginary Numbers are Real

8404 144 0 Imaginary Numbers are Real - Part 3: Cardan's Problem 8404 144 0 Math Imaginary Numbers are Real