Math frequently features in my dreams, and never in a good way. In the latest nightmare I was punted back to high school to retake precalculus. I sat there, embarrassed, hoping to will myself into ...

Louis Leithold, who died April 29, wrote a number of books on calculus and taught at the university level. But his real passion was teaching high school students, as he did late in his life at Malibu ...

There is no shortage of popular books and lectures on math—but they can only teach us so much. Mathematics has long been presented as a sanctuary from confusion and doubt, a place to go in search of ...