...Hipparchus was also the inventor of trigonometry, both plane and spherical... 
George Forbes 「History of Astronomy」
...He invented the sciences of plane and spherical trigonometry, and wasthe first to use right ascensions and declinations...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
ランダム例文：
tirades carte regulated
便利！手書き漢字入力検索