“secant”的概念、定义、翻译、参考文献-科学参考

单词	secant
释义	secant [`sē´kant] ^MATHEMATICS 1. The function given by the reciprocal of the cosine function.Abreviated sec. 2. The secant of an angle A is 1/cos A. 3. A line of unlimited length that intersects a given curve.
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