Source: wikibot/whittaker-shannon-interpolation-formula
= Whittaker–Shannon interpolation formula
{wiki=Whittaker–Shannon_interpolation_formula}
The Whittaker–Shannon interpolation formula, also known simply as the Shannon interpolation formula, is a mathematical formula used for reconstructing a continuous signal from its discrete samples. It is a fundamental result in signal processing and relates to the reconstruction of signals from its sampled data, especially within the context of the Nyquist-Shannon sampling theorem.