• n. [數] 余弦

來自短語complementary sine, 補足正弦。

cosine (n.)

1630s, from co. sinus, abbreviation of Medieval Latin complementi sinus (see complement + sine).

1. The cosine rather than the sine is customarily used in this case.

在這種情況下,習慣上用余弦函數而不是正弦函數.

來自辭典例句

2. This requires two sine - cosine resolvers.

這就需要兩個正余弦分解器.

來自辭典例句

3. Let's now examine the simplest wave from where the profile is a sine or cosine curve.

現在讓我們來考察最簡單的波形,它的剖面圖是正弦或余弦曲線.

來自辭典例句

4. We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.

用復數算術推導了正弦,余弦的加法公式.

來自辭典例句

5. Aim To study some calculation formula of sine function and cosine function.

目的研究正弦函數和余弦函數的一些計算公式.

來自互聯網