🌐中文EnglishDeutschEspañolFrançaisفارسی한국어中文日本語EntityQ849591· pop 7· linked from 20 articles展宽弛豫mathematical function common in physicsAvailable in 7 languagesEspañolFrançaisDeutschHungarianفارسی한국어via Wikidata sitelinks · CC0ConnectionsGradshteyn and RyzhikEntityInternational Standard Book NumberEntityCategoriesExponentials