Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Its Mukai variety is useful in defining abelian varieties, and the essentially identical Plancherel theorem and Parsevals theorem show that it is unitary and applying one of these to a Dirac comb will result in another Dirac comb. It is integral to the Nyquist-Shannon sampling theorem, and both Bluestein's algorithm and Rader's algorithm compute a form of it by transforming it into a convolution, while runtime big-O of n log n for one variety of them is achieved by recursively breaking it down into smaller ones, a technique known as the Cooley-Tukey algorithm. Commonly used in signal and image processing, FTP, name this mathematical operation that breaks a function down into a spectrum of its component sinusoidal frequencies.

Science