我仍然和数字们纠缠不清，它们抽象的外形比加减乘除的基础运算更为繁难。
I still tussle with my Numbers, not so much the basic operations-addition, subtraction, multiplication-as the more abstract configurations.
可分为四个主模块：信号来源模块、滤波处理模块、FFT模块和序列基础运算模块。
It contains four main modules: signal producing and simulating, FFT, digital filter and basic mathematical operation.
其他科学家也曾著书向非科学家们解释他们的研究领域，但却不得不忽略数学运算以使得书籍简单易懂，尽管数学运算为他们的理论提供了基础。
Other scientists have written books to explain their fields to non-scientists, but have necessarily had to omit the mathematics, although it provides the foundation of their theories.
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