chrisd from the satan-ordered-a-book-on-freezing-hell-apparently dept.
sofar writes: "Amazon finally makes a profit. Well, only $ 5mln, but maybe you can actually earn something on your stock now. At 1c a share it's no pension fund in Florida yet." I wonder how much of that profit represents 1-click licensing fees.
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"