A surname from Old English.

plural of Littlewood

The observation that a person can expect to experience an event with odds of one in a million approximately once per month.

A hypothetical problem dealing with the notion of infinity. Given an empty vase and an infinite supply of balls, an infinite number of steps are performed, such that at each step 10 balls are added to the vase and one ball removed from it. The question is then posed: how many balls are in the vase when the task is finished?

(number theory) A method used to compute the residues about zero for the generating function of a series, as part of proving asymptotic behaviour of the series.