🌐EnglishEnglishFrançaisРусский日本語EntityQ649478· pop 6· linked from 8 articlesEikonal approximationmethod of approximation useful in wave scattering equationsAvailable in 5 languages日本語РусскийBelarusianCatalanvia Wikidata sitelinks · CC0ConnectionsGreekEntityquantum mechanicsEntityCategoriesMathematical analysisTheoretical physics