sine是什么意思（sine的用法）

大家好，知识小编来为大家讲解下。sine是什么意思，sine的用法很多人还不知道，现在让我们一起来看看吧！

一、sine是什么意思

1、sine 正弦

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

3、sine 无，没有

4、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.

二、sine的用法

1、sine

2、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

3、sine (n.)

4、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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