Source: wikibot/extractor-mathematics
= Extractor (mathematics)
{wiki=Extractor_(mathematics)}
In mathematics, the term "extractor" usually refers to a specific type of function or algorithm used in the context of complexity theory and probability theory, particularly in the field of pseudorandomness. An extractor is a function that takes a weakly random input (often a "source" of random bits that is not perfectly random) and produces a shorter output that is statistically close to a uniform distribution.