数学有一定的逻辑。如果你用它来准确地描述一种情况，有时你可以提前几个世纪预测不可避免的事情——例如，日食发生的那一刻。对于那些不熟悉预测背后的数学的人来说，这个结果可能看起来很神奇。事实上，科幻小说作家亚瑟·克拉克（Arthur C. Clarke）有句名言：“任何足够先进的技术都与魔法无异。”
在今天的 Insights 谜题中，我们将探讨四个数学魔法的例子，乍一看，它们就像读心术。就像舞台魔术一样，这些例子会让你想知道，“他们怎么知道的？”
https://www.hihonor.com/tr/club/topicdetail/topicid-82377/
https://www.hihonor.com/tr/club/topicdetail/topicid-82378/
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https://www.hihonor.com/tr/club/topicdetail/topicid-82382/
https://www.hihonor.com/tr/club/topicdetail/topicid-82383/
https://www.hihonor.com/fr/club/topicdetail/topicid-33399/
https://www.hihonor.com/fr/club/topicdetail/topicid-33400/
https://www.hihonor.com/fr/club/topicdetail/topicid-33401/
https://www.hihonor.com/fr/club/topicdetail/topicid-33405/
https://www.hihonor.com/fr/club/topicdetail/topicid-33406/
https://www.hihonor.com/fr/club/topicdetail/topicid-33407/
https://geany.org/p/cOXqt/
http://cpp.sh/9a7en
https://geany.org/p/DtT9g/
http://cpp.sh/7gskn
https://rextester.com/RYOJ4008
https://coliru.stacked-crooked.com/a/9bf64f3f3e40c623
https://yamcode.com/how-do-math-magicians-know-what-it-is
https://paste2.org/A7GFIVIj
https://ideone.com/8qOu43
https://pasteio.com/x0fZ1N3vFLDe
https://paste.tbee-clan.de/6Bnw6
https://controlc.com/4952a178
https://p.teknik.io/vT9Pe
https://apaste.info/R4Tb
https://notes.io/qqMgb
https://paiza.io/projects/K9YTNl19WUiALPcWLwsaYQ
https://ide.geeksforgeeks.org/71b318aa-af96-4e1a-b7a9-1246e9cbfad7
http://cpp.sh/42bgs
https://bitbin.it/u0dajd2F/
https://pastelink.net/1dv25hvt
https://paste.rs/aXz
https://dotnetfiddle.net/cQpDZ0
http://allabouturanch.com/forum/topics/how-do-math-magicians-know-what-it-is
http://beterhbo.ning.com/forum/topics/how-do-math-magicians-know-what-it-is
https://caribbeanfever.com/photo/albums/ndsvfger-gbreger
http://playit4ward-sanantonio.ning.com/photo/albums/asfcw-gerg
http://ptits.net/boards/t/78458/searcweas.aspx
https://pantip.com/topic/41421921
https://vocus.cc/article/627a2bc8fd8978000124dcf5
我们很多人小时候都经历过这种情况。一位朋友要求我们在不透露的情况下想出某个数字。然后我们被要求对其进行一系列简单的算术运算。最后，我们的朋友告诉我们我们的密码，让我们大吃一惊。那么这是怎么做到的呢？
这是一个简单的例子，它可能会让你生活中的孩子大吃一惊，甚至激发对数学的迷恋。爱丽丝梦游仙境的作者刘易斯卡罗尔将其用于此目的。卡罗尔是牛津大学的数学家和狂热的益智者，他的数学谜题让许多数学家感到高兴，包括著名的陶伦斯。