You don't need to be a master mathematician to know that numbers hold special meanings—both personal and cultural. Maybe you wore your lucky number seven on every soccer jersey, or perhaps you painted ...

In the early 1970s mathematician Donald Knuth spent a sabbatical with his wife in Norway. The time was meant to be spent relaxing. Yet one night he woke up his partner in a state of agitation. He ...

Originally defined as the ratio between the circumference of a circle and its diameter, pi — written as the Greek letter π — appears throughout mathematics, including in areas that are completely ...