首页>
外国专利>
Method and system of rounding for quadratically converging division or square root
Method and system of rounding for quadratically converging division or square root
展开▼
机译:二次收敛除法或平方根的舍入方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and system which provides exactly rounded division and square root results for a designated rounding mode independently of a remainder, or equivalent calculation of the relationship between the remainder and zero, for predetermined combinations of the rounding mode and the least significant bit of an estimate that has one more bit of precision than the exactly rounded result, and has an error tolerance magnitude less than the weight of the least significant bit of the estimate. The estimate is generated in accordance with a quadratically converging division or square root algorithm. The method and system is described in connection with IEEE 754-1985 and IBM S/390 binary floating point architectures.
展开▼
机译:一种方法和系统,针对舍入模式和估计的最低有效位的预定组合,为指定的舍入模式提供精确的舍入除法和平方根结果,而与余数无关,或者对余数和零之间的关系进行等效计算与精确舍入后的结果相比,它的精度更高,并且容错幅度小于估算值的最低有效位的权重。该估计是根据二次收敛除法或平方根算法生成的。结合IEEE 754-1985和IBM S / 390二进制浮点体系结构描述了该方法和系统。
展开▼