Today is π Day. 3.14, &c.
Richard Preston's 1992 New Yorker profile of the Chudnovsky brothers, David and Gregory, calculators of π, is online. David Chudnovksy:
"We need many billions of digits. Even a billion digits is a drop in the bucket. Would you like a Coca-Cola?"in 1992 the Chudnovksy brothers were unsalaried, untenured "senior research scientists" at Columbia University. They are now distinguished professors at the Polytechnic Institute of New York University.
The Mountains of Pi (New Yorker)