根预估原理,小数分离技术及其微处理器方法  

RADICAL ESTIMATION PRINCIPLE, DECIMAL SEPARATIONTECHNICS AND THE MICROPROCESSOR METHODS

作　　者：宋永明[1] 朱摩西[1] 吴长民[1] 

机构地区：[1]山东轻工业学院,山东省科学院

出　　处：《山东科学》1995年第4期1-5,共5页Shandong Science

摘　　要：提出了根预估的原理及其微处理器实现方法，使根的逼近只需在平均相对宽度仅为８％狭窄根区间内进行；小数分离技术的提出解除了被开方小数和派生小数对迭代过程的耦合与复杂化；对工程应用，根小数处理可一次性地整数化完成；基于整数处理和直接指令的迭代过程具有最简的机器操作．整套方法在全正实数域内有效．新开发的算法具有极高的运行速度且可简便地直接微处理器指令化，对高速实时系统和脱离浮点函数的场合极有帮助．Radical estimation principle and the microprocessor methods were established, by which the radicalapproaching can be carried out in a narrow with a relative width of only 8% on average. The proposal ofdecimal separation technics removes the coupling and complexity caused by decimal in randicans and decimal derived from repeated processes. Radical decimal can be obtained directly by integer operations inengineering. Based on integer operations and direct instructions, the process repeated takes up leastmicroprocessors operation each time. All the concepts and methods are effective in all range of positivereal number. The algorithm developed is speedy and convenient to be realized by microprocessor instruction, and helpful to high speed real-time systems or the cases without floating-point functions.

关 键 词：根预估 小数分离 微处理器方法 根逼近 函数逼近 

分 类 号：O241.5[理学—计算数学]