sine

英 [saɪn] 美 [saɪn]

解释

※ 提供单词"sine"的中文意思、发音示范及音标对照，中英文词源、例句和用法等。

sine 正弦

来自拉丁语 sinus,弯，曲，词源同 sinus,sinuous.后用于几何学名词指正弦。

sine 无，没有

来自拉丁语 sine,无，没有，来自 PIE*sene,分开，可能来自 PIE*se,*swe,自己的，词源同 self.

sine: sine: [16] As in the case of many other mathematical terms, English is indebted to Arabic for sine. But here the debt is only semantic, not formal. The word sine itself was borrowed from Latin sinus ‘curve, fold, hollow’ (source also of English sinuous [16] and indeed of sinus [16], whose anatomical use comes from the notion of a ‘hollow’ place or cavity). In postclassical times it came to denote the ‘fold of a garment’, and so it was mistakenly used to translate Arabic jayb ‘chord of an arc’, a doppelganger of Arabic jayb ‘fold of a garment’.
=> sinuous, sinus
sine (n.): trigonometric function, 1590s (in Thomas Fale's "Horologiographia, the Art of Dialling"), from Latin sinus "fold in a garment, bend, curve, bosom" (see sinus). Used mid-12c. by Gherardo of Cremona in Medieval Latin translation of Arabic geometrical text to render Arabic jiba "chord of an arc, sine" (from Sanskrit jya "bowstring"), which he confused with jaib "bundle, bosom, fold in a garment."

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1. Successful agricultural reform is also a sine qua non of Mexico's modernisation.: 成功的农业改革也是墨西哥实现现代化的必要条件。

4. The cosine rather than the sine is customarily used in this case.: 在这种情况下,习惯上用余弦函数而不是正弦函数.