🌐EnglishEnglishBahasa IndonesiaEspañolSvenskaРусский中文日本語EntityQ22093344· pop 8· linked from 23 articlescisAlso known as cis(x)mathematical notation for cos(x) + i sin(x)Available in 8 languagesEspañol中文日本語BanglaCatalanGalicianHebrewvia Wikidata sitelinks · CC0Connectionscomplex numberEntityHartley transformEntityCategoriesMathematical identitiesTrigonometry