擲硬幣
外觀
擲毫或擲硬幣、擲銅板是一種把硬幣彈到空中,透過它落下來後所顯示的結果(落下來後是正面向上還是反面向上),來解決事情的一種方法。
硬幣有兩面,是一個天然的二進制系統,利用擲硬幣人們可以得到一組隨機的二進制數字,有些人會把它作為做判斷的參考,例如球賽由哪一方先發球,或先選哪半邊場作賽。
外部連結
[編輯]- Heads or Tails? (頁面存檔備份,存於互聯網檔案館) (A discussion of the predictability of a coin toss; with references)
- The Not So Random Coin Toss (頁面存檔備份,存於互聯網檔案館) (Brief blurb about Persi Diaconis' work, with a photograph of the coin-tossing machine)
- Dynamical Bias in the Coin Toss (頁面存檔備份,存於互聯網檔案館) (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 (頁面存檔備份,存於互聯網檔案館) (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 (頁面存檔備份,存於互聯網檔案館)
- Flip-Coin.com: Simple web app to flip a virtual coin
- Leads in Coin Tossing (頁面存檔備份,存於互聯網檔案館) by Fiona Maclachlan, The Wolfram Demonstrations Project.
這是一篇與密碼學相關的小作品。您可以透過編輯或修訂擴充其內容。 |