A density plot in the complex plane of the Bohemian eigenvalues of a sample of 10 million 20x20 tridiagonal matrices with entries sampled from the set {0, ±(1+1i)/sqrt(2), ±(1-1i)/sqrt(2)}. Color represents the eigenvalue density and the plot is viewed on [-2.5-2.5i, 2.5+2.5i].
