Keith Devlin mails his completed election ballot. What does math have to say about his act? With the United States is the final throes...

The title of the famous Beatles song does not exactly apply to Devlin’s Angle . The online column (now run on a blog platform, but unlike m...

Devlin’s Angle turned 20 this year. The first post appeared on January 1, 1996, as part of the MAA’s move from print to online. I was the ...

A scene from Zero Days , a Magnolia Pictures resease. Photo courtesy of Magnolia Pictures The new documentary movie Zero Days , writte...

The recent (and in many respects ongoing) Brexit vote in the United Kingdom provides a superb example of poor use of mathematics. Regardles...

On May 30, Gary Antonick’s always interesting Numberplay section in the New York Times featured a contribution by Berkeley mathematician ...

What does it mean to “do algebra”? In Part 1, published here last month, I described how algebra (from the Arabic  al-Jabr ) began in 9th ...