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单词	sine
释义	sine AHD[sīn] D.J.[saɪn]K.K.[saɪn]n.Abbr. sinMathematics （名词）缩写 sin【数学】 sin θ= a/cClarinda/Academy Artworks The ordinate of 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 (1, 0) if x is positive or clockwise if x is negative. 正弦：中心在笛卡尔坐标系原点的一个单位园上的一端点的纵坐标，弧长为X 如果 X 为正，其长由点（1,0）开始逆时针测量如 X 为负，其长度按顺时针方向测量 In a right triangle, the ratio of the length of the side opposite an acute angle to the length of the hypotenuse.正弦：在一个直角三角形中，锐角所对边长度与斜边长度之比 Etymology语源 Medieval Latin sinus mistranslation of Arabic jayb [sine] as if jayb [fold in a garment] 中世纪拉丁语 sinus 阿拉伯语 jayb的错译 [正弦] 似乎为 jayb [衣服上的皱褶] from Latin [curve, fold] 源自 拉丁语 [曲线，皱褶]
随便看	pedagogics pedagogies pedagogue pedagogue pedagogues pedagogy pedal pedal pedaled pedaler pedalfer pedalfers pedaling pedal keyboard pedalled pedaller pedaller pedalling pedal piano pedal point pedal pushers pedals pedal steel pedal steel guitar pedant

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