也就是说，它是Math . pow函数的反函数。

That is, it is the inverse of the Math.pow function.

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利用折线方程确定和代替信号传递函数，并通过软件方法求得近似传递函数的反函数；

Using the equation of broken line to define and substitutes for the signal transfer function, and the inverse function of approximate transfer function is obtained by way of the software method.

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当单调函数的反函数不能显性表示时，连续型随机变量的分布密度曲线仍可通过参数方程的形式获得。

When a inverse function of monotone function can not show the explicit formula, the distribution density curve of continuous randon variable can be gained with a parametric equation.

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