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Roots of Unity

Roots of Unity

Mathematics: learning it, doing it, celebrating it.

Knotty Fun at the Joint Math Meetings

Mathematicians attempting to untangle a human knot at a knot "flash mob" on January 11, 2013 at the Joint Mathematics Meetings. Image: American Mathematical Society Anyone with necklaces or lace-up shoes has some first-hand experience with knots, but believe it or not (knot?), there is an entire mathematical discipline dedicated to studying knots and some closely related concepts...

January 12, 2013 — Evelyn Lamb

Where in the World Are the Odd Perfect Numbers?

A ladybug with a perfect number of spots. Image: Lauren Tucker Photography, via flickr. The launch of Roots of Unity was just in time for this year's Joint Mathematics Meetings, a mathapalooza put on by the two largest professional mathematical societies (the American Mathematical Society and the Mathematical Association of America)...

January 10, 2013 — Evelyn Lamb

The First Root of Unity

  This is what I look like standing on a tilted post near Cayuga Lake in Ithaca, New York.   Welcome to Roots of Unity! I'm Evelyn Lamb, and I am a mathematician...

January 7, 2013 — Evelyn Lamb

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