Just a quick Pi Day pointer, math teachers: be sure to remind students that Pi is a constant rather than a variable. The misconception that it’s a variable comes in part from the fact that we often ...

March 14, 2018, is Pi Day — that’s pi, not pie — and on Wednesday, Google marks the 30th anniversary of the math-inspired holiday with a special Doodle. Pi, denoted by the Greek letter “π”, has been ...

This story originally appeared on the Conversation and is reprinted here with permission. Happy Pi Day, where we celebrate the world’s most famous number. The exact value of π=3.14159… has fascinated ...

Time is a flat circle, Matthew McConaughey tells us, neglecting to explain how then we could measure time's circumference to derive its diameter, using pi. (Maybe it's best not to take the sentiment ...