11464 424 1 Imaginary Numbers are Real - Part 1: Introduction 11464 424 1 Math Imaginary Numbers are Real
9795 259 0 Imaginary Numbers are Real - Part 2: A Little History 9795 259 0 Math Imaginary Numbers are Real
10137 144 0 Imaginary Numbers are Real - Part 3: Cardan's Problem 10137 144 0 Math Imaginary Numbers are Real
