{"version":"1.0","type":"link","title":"Sigma approximation - Newikis","description":"In mathematics, σ-approximation adjusts a Fourier summation to greatly reduce the Gibbs phenomenon, which would otherwise occur at discontinuities.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://upload.wikimedia.org/wikipedia/commons/b/bd/Sigma-approximation_of_a_Square_Wave_.gif","thumbnail_width":480,"thumbnail_height":360}