“cosine function”的概念、定义、翻译、参考文献-科学参考

单词	cosine function
释义	cosine function [`kō´sīn ´fǝŋk·shǝn] ^MATHEMATICS In a right triangle with an angle θ, the cosine function gives the ratio of adjacent side to hypotenuse; more generally, it is the function which assigns to any real number θ the abscissa of the point on the unit circle obtained by moving from (1,0) counterclockwise θ units along the circle, or clockwise θ< units if θ is less than 0.Denoted cos.
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