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单词 cosine
释义

cosine

音标['k?usain]

汉语翻译

n. 余弦
【电】 余弦

英语解释:

名词 cosine:

  1. ratio of the adjacent side to the hypotenuse of a right-angled triangle
    同义词:cos

详细解释:


co.sine

n.Abbr. cos(名词)缩写 cos
In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse.
余弦:直角三角形锐角边的边长与叙边的比
The abscissa at the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of lengthx and measured counterclockwise from the point (, 0) if x is positive or clockwise if x is negative.
余弦:以笛卡儿坐标系原点为圆心的单位圆的圆弦端点的横坐标,弧的长度为x ,如果 x 为正,弧的长度则从(,0)点按逆时针方向算起,若 x 为负,则按顺时针方向从(,0)点算起


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