🌐EnglishEnglishEspañolFrançaisPortuguêsРусский中文日本語EntityQ1960635· pop 7· linked from 26 articlesrational trigonometryreformulation of planar distance and angle measurements in terms of polynomial functions of Cartesian coordinatesAvailable in 6 languagesEspañolFrançaisPortuguêsEsperantoFinnishvia Wikidata sitelinks · CC0ConnectionsangleEntityEuclidean distanceEntityCategories2005 non-fiction booksMathematics booksSelf-published booksTrigonometry