For faster navigation, this Iframe is preloading the Wikiwand page for
除法算法.
此条目需要扩充。 (2011年7月7日)请协助
改善这篇条目,更进一步的信息可能会在
讨论页或
扩充请求中找到。请在扩充条目后将此模板移除。
除法器(除法算法)是一类算法。给定两个整数 N(分子)和 D(分母),计算它们的商和(或)余数。其中某些算法可以通过人工手动计算,而另一些则需要依赖数字电路的设计或软件。[1]
除法算法主要分为两类:慢除法和快除法。慢除法在每次迭代的过程中给出结果(商)的一位数字。慢除法包括复原法(restoring)、非复原法(non-restoring)和SRT除法等。快除法从商的一个近似估计开始,并且在每次迭代过程中产生有效位数为最终商的两倍多的中间值。Newton-Raphson和GoldSchmidt属于这一类。
为接下来的讨论的方便,我们有以下标记:
其中
- N = Numerator (divident) 即“分子”(被除数)
- D = Denominator (divisor) 即“分母”(除数)
是输入,而输出是
- Q = Quotient 即“商”
- R = Remainder 即“余数”
非复原的除法器 (non-restoring)
[编辑]
- ^ Division algorithm. Wikipedia. 2018-03-24 [2018-04-14]. (原始内容存档于2019-08-18) (英语).
{{bottomLinkPreText}}
{{bottomLinkText}}
This page is based on a Wikipedia article written by
contributors (read/edit).
Text is available under the
CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.
{{current.index+1}} of {{items.length}}
Thanks for reporting this video!
This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:
An extension you use may be preventing Wikiwand articles from loading properly.
If you're using HTTPS Everywhere or you're unable to access any article on Wikiwand, please consider switching to HTTPS (https://www.wikiwand.com).
An extension you use may be preventing Wikiwand articles from loading properly.
If you are using an Ad-Blocker, it might have mistakenly blocked our content.
You will need to temporarily disable your Ad-blocker to view this page.
✕
This article was just edited, click to reload
Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}
Follow Us
Don't forget to rate us
Oh no, there's been an error
Please help us solve this error by emailing us at
support@wikiwand.com
Let us know what you've done that caused this error, what browser you're using, and whether you have any special extensions/add-ons installed.
Thank you!