PITTSBURGH, Pennsylvania, June 9 -- Carnegie Mellon University posted the following news:

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When Abstract Problems Take Shape

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Magic Eye books from the 1990s hid three-dimensional images in what looked like a swirl of dots and colors. At first glance, you see only noise. Change your focus, and suddenly a shape appears.

Carnegie Mellon University mathematician Florian Frick (opens in new window) studies something similar in ma . . .

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