calculation format 计算格式
The basic design idea, primary data structure, format calculation and printing algorithm for the report generator are also discussed in detail.
详细地叙述了这种报表生成器的基本设计思想、主要数据结构、格式计算和报表打印算法，并给出了一个典型的应用实例。
Format the calculation result back to a String object by using NumberConverter again.
通过再次使用NumberConverter，来将计算结果格式化回至String对象。
When the code is compiled or interpreted, your "0.1" is already rounded to the nearest number in that format, which results in a small rounding error even before the calculation happens.
当代码被编译或者解释运行时，“0.1”已经被近似转化为这种形式下最接近的一个浮点数，这导致在计算还没有真正开始之前，一个微小的舍入误差就已经存在了。
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