本标准规定了计算机编程环境中二进制和十进制浮点运算的交换和算术格式及方法。本标准规定了异常条件及其默认处理。符合本标准的浮点系统的实现可以完全用软件、硬件或软硬件的任何组合来实现。对于本标准规范性部分中规定的操作，数值结果和例外情况由用户控制的输入数据值、操作顺序和目标格式唯一确定。

This standard specifies interchange and arithmetic formats and methods for binary and decimal floating-point arithmetic in computer programming environments. This standard specifies exception conditions and their default handling. An implementation of a floating-point system conforming to this standard may be realized entirely in software, entirely in hardware, or in any combination of software and hardware. For operations specified in the normative part of this standard, numerical results and exceptions are uniquely determined by the values of the input data, sequence of operations, and destination formats, all under user control.