Since @rcorless was posting about Bohemian matrices a while ago, I thought I'd try some experiments of my own. Here's the result of plotting the eigenvalues of 4×4 upper Hessenberg matrices with zero diagonal and the other entries chosen among the cube roots of -1.
@rcorless Thank you for sharing these Bohemian pictures, and I might as well take the opportunity to thank you for your Maple books as well!
@tpfto you are very welcome :) I guess it's time to wrie a third edition... We'll see! I'm thinking of the tagline "not your parent's Maple"!
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