Originally defined as the ratio between the circumference of a circle and its diameter, pi — written as the Greek letter π — ...

The ancient scholar Hippasus of Metapontum was punished with death for his discovery of irrational numbers—or at least that’s the legend. What actually happened in the fifth century B.C.E. is far from ...

In a previous post, we considered three of seven "irrational" habits of highly rational people. Here we consider the remaining four, as well as some suggestions for distinguishing the genuinely ...