Home›Browse›Principal axis theorem🌐EnglishEnglishDeutschFrançais한국어中文日本語EntityQ7245073· pop 7· linked from 20 articlesPrincipal axis theoremSign in to savethe principal axes an ellipsoid or hyperboloid are perpendicularAvailable in 7 languagesFrançaisDeutschCatalanCzechRomanian한국어via Wikidata sitelinks · CC0