因此IEEE 协会为了规范统一(方便CPU指令制造,各平台兼容等等)出台了 IEEE Standard for Floating-Point Arithmetic(IEEE-754)二进制浮点数算数标准,选用了浮点数作为储存和算数标准。 该标准描述了包括"浮点数的格式"、"一些特殊数值"、"浮点数的运算"、"舍入规则与例外情况" 等等内容三...
很容易就找到了这个链接: https://stackoverflow.com/questions/12954193/why-does-division-by-zero-with-floating-point-or-double-precision-numbers-not 这个提问者提出的问题翻译过来,和我前面遇到的问题一模一样: 为什么用 Float 或者 Double 除以零不会抛出 java.lang.ArithmeticExceptionL:/by zero 异常? 这个...
Floating-Point Types, Formats, and Values The floating-point types arefloatanddouble, which are conceptually概念associated with the single-precision 32-bit and double-precision 64-bit format IEEE 754 values and operations as specified指定 inIEEE Standard for Binary Floating-Point Arithmetic, ANSI/IEEE...
Floating-Point Types, Formats, and Values The floating-point types arefloatanddouble, which areconceptually概念associated with thesingle-precision 32-bitanddouble-precision 64-bitformat IEEE 754 values and operations asspecified指定 inIEEE Standard for Binary Floating-Point Arithmetic, ANSI/IEEE Standard ...
Floating-Point Arithmetic》ANSI/IEEE Std. 754-1985(IEEE, New York)标准中定义的32位单精度和64位双精度IEEE 754格式取值和操作都是一致的。 IEEE 754标准的内容不仅包括了正负带符号可数的数值(Sign-Magnitude Numbers),还包括了正负零、正负无穷大和一个特殊的“非数字”标识(Not-a-Number,下文用NaN表示)。
IEEE 754 的全称是 IEEE Standard for Floating-Point Arithmetic。 表示电气和电子工程师协会制定的浮点运算技术标准。 Standard,标准,你明白吧? 得有一些 Standard,有些事情才好办,不然各自为战,各自兼容,难受的一比。 所以,该标准是为了解决在不同的浮点实现中的各种问题,这些问题使它们难以可靠地使用和移植。
One notable gap is the limited support for floating-point reasoning. This is unfortunate, as floating-point arithmetic is particularly unintuitive to reason about due to rounding as well as the presence of the special values infinity and `Not a Number' (NaN). In this paper, we present the ...
Microsoft Visual C++ Floating-Point Optimization 在x86/x87环境中进行浮点数运算，如果在x87用默认精度...
Computer systems can provide an arithmetic that gives the results that people expect, instead of the results that binary floating point calculations give (see the sidebar on the right for an example). This is not available in Java today, so a decimal floating point arithmetic is needed – one...
2.8.1. Java Virtual Machine Floating-Point Arithmetic and IEEE 754 The key differences between the floating-point arithmetic supported by the Java Virtual Machine and the IEEE 754 standard are: The floating-point operations of the Java Virtual Machine do not throw exceptions, trap, or otherwise...