10933 424 1 Imaginary Numbers are Real - Part 1: Introduction 10933 424 1 Math Imaginary Numbers are Real
9367 259 0 Imaginary Numbers are Real - Part 2: A Little History 9367 259 0 Math Imaginary Numbers are Real
9776 144 0 Imaginary Numbers are Real - Part 3: Cardan's Problem 9776 144 0 Math Imaginary Numbers are Real
