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What is sinc function?

Updated: 4/28/2022
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11y ago

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In mathematics and engineering, the sinc function, denoted by sinc(x), has two slightly different definitions.[1]

In mathematics, the historical unnormalized sinc functionis defined by

In digital signal processing and information theory, the normalized sinc function is commonly defined by The normalized sinc (blue) and unnormalized sinc function (red) shown on the same scale.

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