sqrt

来自「C实现的MUD,对大家基本入门网络游戏很有帮助!」· 代码 · 共 19 行

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          sqrt() - returns the square root of a float

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          float sqrt( float f );

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          sqrt() returns the non-negative square root of its argument,
          `f'.  The value of `f' must not be negative.

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          exp(3), log(3), pow(3)

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