companydirectorylist.com  全球商业目录和公司目录
搜索业务,公司,产业 :


国家名单
美国公司目录
加拿大企业名单
澳洲商业目录
法国公司名单
意大利公司名单
西班牙公司目录
瑞士商业列表
奥地利公司目录
比利时商业目录
香港公司列表
中国企业名单
台湾公司列表
阿拉伯联合酋长国公司目录


行业目录
美国产业目录














  • Factorial, but with addition - Mathematics Stack Exchange
    Is there a notation for addition form of factorial? $$5! = 5\times4\times3\times2\times1$$ That's pretty obvious But I'm wondering what I'd need to use to describe $$5+4+3+2+1$$ like the factorial $5!$ way EDIT: I know about the formula I want to know if there's a short notation
  • factorial - Why does 0! = 1? - Mathematics Stack Exchange
    $\begingroup$ The theorem that $\binom{n}{k} = \frac{n!}{k!(n-k)!}$ already assumes $0!$ is defined to be $1$ $ Otherwise this would be restricted to $0 <k
  • What does the factorial of a negative number signify?
    For example: the factorial of zero i e an empty set ( doesn't occur) is 1 As the empty set can be arranged only in 1 way - i e by filling nothing Now, let's take an example: 5 distinct seats How many ways 5 distinct seats can be arranged? - 5! ways i e 120 So, basically, factorial gives us the arrangements
  • Defining the factorial of a real number - Mathematics Stack Exchange
    $\begingroup$ Some theorems that suggest that the Gamma Function is the "right" extension of the factorial to the complex plane are the Bohr–Mollerup theorem and the Wielandt theorem $\endgroup$ – kuzzooroo




企业名录,公司名录
企业名录,公司名录 copyright ©2005-2012 
disclaimer |iPhone手机游戏讨论 |Android手机游戏讨论 |海外商家点评 |好笑有趣影片图片