11626 424 1 Imaginary Numbers are Real - Part 1: Introduction 11626 424 1 Math Imaginary Numbers are Real
9991 259 0 Imaginary Numbers are Real - Part 2: A Little History 9991 259 0 Math Imaginary Numbers are Real
10272 144 0 Imaginary Numbers are Real - Part 3: Cardan's Problem 10272 144 0 Math Imaginary Numbers are Real
