指数衰减函数

decaying exponential function的用法和样例：

例句

Previous studies have shown that the MDCT analysis results of pure sinusoids can be approximated by using the product of a constant, a cosine function, and a decay function.由先前的研究，一个正弦波讯号的修正式离散馀弦转换分析结果可以由一个常数，一个馀弦函数与一个衰减函数的乘积所逼近。

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anterio-superior to the ear