(mathematics) The result that the Fourier transform is unitary; loosely, that the sum (or integral) of the square of a function is equal to the sum (or integral) of the square of its transform.

To move smoothly from one state or subject to another. / (music) To make a smooth transition from one theme to another. / (of a disk jockey) To play a sequence of records with no talk between them.

plural of frob

(games, probability) A game in which the outcome is at least partly determined by random variables rather than strictly by strategy.