英['kəʊsaɪn]美['koʊsaɪn] n. [数]余弦 记忆方法 词源记忆法 来自短语complementary sine,补足正弦。 中文 双解 英英 词法 noun(名词) 余弦 noun(名词) (in a triangle that has one angle of 90°) the ratio of the length of the side next to an angle less than 90°, divided by the length of the hypotenuse (= the side opposite the 90° angle)余弦 n.ratio of the adjacent side to the hypotenuse of a right-angled triangle同义词:cos 词态 语态 双解例句 noun(名词) 余弦 实用短语direction cosine方向余弦arc cosine反余弦,逆余弦cosine collector余弦收集器,余弦集电器cosine theorem余弦定理cosine power余弦次方,余弦值cosine radiator余弦辐射体cosine rule余弦定律,余弦规则cosine impulse余弦脉冲cosine oscillations余弦振荡 常用短语discrete cosine transform离散余弦变换direction cosine方向余弦