掷硬币
外观
掷毫或掷硬币、掷铜板是一种把硬币弹到空中,透过它落下来后所显示的结果(落下来后是正面向上还是反面向上),来解决事情的一种方法。
硬币有两面,是一个天然的二进制系统,利用掷硬币人们可以得到一组随机的二进制数字,有些人会把它作为做判断的参考,例如球赛由哪一方先发球,或先选哪半边场作赛。
外部链接
[编辑]- Heads or Tails? (页面存档备份,存于互联网档案馆) (A discussion of the predictability of a coin toss; with references)
- The Not So Random Coin Toss (页面存档备份,存于互联网档案馆) (Brief blurb about Persi Diaconis' work, with a photograph of the coin-tossing machine)
- Dynamical Bias in the Coin Toss (页面存档备份,存于互联网档案馆) (by Persi Diaconis, Susan Holmes, and Richard Montgomery; very detailed)
- Whether divination by drawing lots is unlawful? (From the Summa Theologiae of Thomas Aquinas)
- The Casting of Lots (Discussion of making decisions by chance outcomes throughout history)
- Coin Tossing — mathworld.com (页面存档备份,存于互联网档案馆) (Contains information about counterintuitive properties of coin tossing)
- Persi Diaconis' website — including the paper Dynamical Bias in the Coin Toss PDF
- Random.org: flip a virtual coin (页面存档备份,存于互联网档案馆)
- Flip-Coin.com: Simple web app to flip a virtual coin
- Leads in Coin Tossing (页面存档备份,存于互联网档案馆) by Fiona Maclachlan, The Wolfram Demonstrations Project.
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