cosine
['kosaɪn]
n. 余弦

[] 余弦

1. Let's now examine the simplest wave from where the profile is a sine or cosine curve.
   考察简单波形，剖图正弦余弦。
2. A digital map watermarking algorithm based on discrete cosine transform( DCT) is presented.
   【英文摘】设DCT数图印算。
3. We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.
   复数算推正弦，余弦。

cosine
[ noun ]
ratio of the adjacent side to the hypotenuse of a right-angled triangle
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Cosine \Co"sine\ (k?"s?n), n. [For co. sinus, an abbrev. of L.
complementi sinus.] (Trig.)
The sine of the complement of an arc or angle. See Illust. of
{Functions}.