“sine”的概念、定义、翻译、参考文献-科学参考

单词	sine
释义	sine [sīn] ^MATHEMATICS The sine of an angle A in a right triangle with hypotenuse of length c given by the ratio a/c, where a is the length of the side opposite A; more generally, the sine function assigns to any real number A the ordinate of the point on the unit circle obtained by moving from (1,0) counterclockwise A units along the circle, or clockwise A units if A is less than 0.Denoted sin A.
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