A real type defines a set of numbers that can be represented with floating - point notation . the table below gives the ranges and storage formats for the fundamental real types 翻译:实数类型定义了一组可以以浮点记号描述的数。下表给出了重要的实数类型的范围和存储格式。
英文解释
a radix numeration system in which the location of the decimal point is indicated by an exponent of the radix; in the floating-point representation system, 0.0012 is represented as 0.12-2 where -2 is the exponent 同义词:floating-point representation system,