sine

        英 [sa?n] 美[sa?n]
        • n. 正弦
        • prep. (拉)無(等于without)
        • n. (Sine)人名;(土)西內(nèi)

        暢通詞匯

        中文詞源


        sine 正弦

        來自拉丁語 sinus,彎,曲,詞源同 sinus,sinuous.后用于幾何學(xué)名詞指正弦。

        sine 無,沒有

        來自拉丁語 sine,無,沒有,來自 PIE*sene,分開,可能來自 PIE*se,*swe,自己的,詞源同 self.

        英文詞源


        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."

        雙語例句


        1. Successful agricultural reform is also a sine qua non of Mexico's modernisation.
        成功的農(nóng)業(yè)改革也是墨西哥實(shí)現(xiàn)現(xiàn)代化的必要條件。

        來自柯林斯例句

        2. The case was adjourned sine die.
        此案無限期延遲審理。

        來自《權(quán)威詞典》

        3. Patience is a sine qua non for a good teacher.
        做個(gè)優(yōu)秀教師必不可少的條件是要有耐心.

        來自辭典例句

        4. 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).

        來自辭典例句

        5. The meeting adjourned sine die.
        會(huì)議無限期延期.

        來自辭典例句

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