cosine
英 ['k??sa?n]
美['kosa?n]
- n. [數(shù)] 余弦
暢通詞匯
助記提示
1. complement + sine.
中文詞源
cosine 余弦
來(lái)自短語(yǔ)complementary sine, 補(bǔ)足正弦。
英文詞源
- cosine (n.)
- 1630s, from co. sinus, abbreviation of Medieval Latin complementi sinus (see complement + sine).
雙語(yǔ)例句
- 1. The cosine rather than the sine is customarily used in this case.
- 在這種情況下,習(xí)慣上用余弦函數(shù)而不是正弦函數(shù).
來(lái)自辭典例句
- 2. This requires two sine - cosine resolvers.
- 這就需要兩個(gè)正余弦分解器.
來(lái)自辭典例句
- 3. Let's now examine the simplest wave from where the profile is a sine or cosine curve.
- 現(xiàn)在讓我們來(lái)考察最簡(jiǎn)單的波形,它的剖面圖是正弦或余弦曲線.
來(lái)自辭典例句
- 4. We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.
- 用復(fù)數(shù)算術(shù)推導(dǎo)了正弦,余弦的加法公式.
來(lái)自辭典例句
- 5. Aim To study some calculation formula of sine function and cosine function.
- 目的研究正弦函數(shù)和余弦函數(shù)的一些計(jì)算公式.
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