英文英文字典

英文英文字典

古腾堡计划中的在线英语-英语词典

结果

Trigonometry的结果

Trigonometry (n.)
That branch of mathematics which treats of the relations of the sides and angles of triangles, which the methods of deducing from certain given parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles.
Trigonometry (n.)
A treatise in this science.