The Whittaker-Shannon interpolation formula reconstructs a continuous, band-limited signal exactly from an infinite sequence of its evenly spaced samples, provided the sampling rate exceeds twice the signal's highest frequency component. It expresses the reconstructed signal as a sum of shifted and scaled sinc functions, each centered on one sample point and weighted by that sample's value. The formula is the mathematical foundation of the Nyquist-Shannon sampling theorem, which underlies digital audio, telecommunications and any system that converts a continuous signal into a discrete sequence of samples and back. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
Origin Yeardates back to the works of E. Borel in 1898 Connections
Is Kind Of Object
Entity-backed identity for the object-kind enum value this mathematical object already carries, resolved to a mathematics concept by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The object-kind fact itself stays on the object unchanged.
Sources
1. Whittaker-Shannon Interpolation Formula (Wikipedia)
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