Pi Instant

  title={Pi Instant},
  author={Jeffrey S. Rosenthal},
  journal={Math Horizons},
  pages={22 - 22}

A Pi Day of the Century Every Year

I n 2015, Pi Day celebrations reached new heights of enthusiasm. The digits of the date—when written in the American style (3/14/15)—matched the first five digits of As this won’t happen again until