初等代数（elementary algebra）是研究数字和文字的代数运算理论和方法，更确切的说，是研究实数和复数，以及以它们为系数的代数式的代数运算理论和方法的数学分支学科。
算术和初等代数中普通的数通称纯量。
The ordinary numbers of arithmetic and elementary algebra are known as scalars.
本文试图用群的思想考察初等代数中的部分内容。
In this paper, we attempt to inspect partially the content of school algebra with the idea of group.
在大多数章节有数学要求，不过通常只是初等代数和函数图象，我希望大多数读者对这些要求没有问题。
There is some mathematics in most chapters, but it's usually just elementary algebra and plots of functions, which I expect most readers will be okay with.
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