c*a
2 楼
你说的是binary? 1是负数, 这种?
c*p
4 楼
Two's complement 居多。比如: x86, amd64, sparc都用 Two's complement.
http://en.wikipedia.org/wiki/Two's_complement
The two's-complement system has the advantage that the fundamental
arithmetic operations of addition, subtraction, and multiplication are
identical to those for unsigned binary numbers (as long as the inputs are
represented in the same number of bits and any overflow beyond those bits is
discarded from the result). This property makes the system both simpler to
implement and capable of easily handling higher precision arithmetic. Also,
zero has only a single representation, obviating the subtleties associated
with negative zero, which exists in ones'-complement systems.
【在 t*********h 的大作中提到】![](/moin_static193/solenoid/img/up.png)
: 一直不太清楚 wiki上列举了N种方式 哪位打牛给说说?
http://en.wikipedia.org/wiki/Two's_complement
The two's-complement system has the advantage that the fundamental
arithmetic operations of addition, subtraction, and multiplication are
identical to those for unsigned binary numbers (as long as the inputs are
represented in the same number of bits and any overflow beyond those bits is
discarded from the result). This property makes the system both simpler to
implement and capable of easily handling higher precision arithmetic. Also,
zero has only a single representation, obviating the subtleties associated
with negative zero, which exists in ones'-complement systems.
【在 t*********h 的大作中提到】
![](/moin_static193/solenoid/img/up.png)
: 一直不太清楚 wiki上列举了N种方式 哪位打牛给说说?
g*e
5 楼
integer use two's comp
floating number use a bit to indicate pos/neg
floating number use a bit to indicate pos/neg
相关阅读
哪些书/网站可以帮助提高解答design问题H1B最后两天寄到的(NOV21,22)你们的状态是acceptance还是initial review啊?面试坐公司订的limousine需要给司机小费么?错过了h1b名额,opt明年八月底到期周二onsite,求祝福~估计死在这一题上了。median in median selection algorithm?有人需要管理类职位面经吗??这里都是IT的貌似毕业时间and CPTOPT挂靠机会关于工作 关于身份 关于生活--记在2011 h1b running out换工作中一般多久通知现雇主学EE的,是不是只能当码工了?为什么很多招实习的广告里都有这么一句话?看见国内招工广告就生气!Job Openning接受一个OFFER之后再怎么拒绝?公司被收购,请教H1B问题,包子答谢。OPT volunteer 问题求助《高效人士的七个习惯》【职场畅销书 中英文版+培训视频】