Owners of the Thai restaurant have given mathematicians a real test if they want to get free internet - but can it even be solved?

　　一家泰国餐厅的老板给数学家们出了一道测试题——如果想要用餐厅的WIFI的话——然而，难度大了点，能答出来吗?

　　Owners of a restaurant have lt diners stumped with a mind-bending Wi-Fi brain teaser.

　　一家餐厅的老板出的一道超级复杂的Wi-Fi智力题难倒了食客们。

　　It appears the people who run YaYa’s Thai restaurant in San Antonio, Texas, have a strange sense of humour after putting up a poster with a mathematical equation for the password.

　　德州圣安东尼奥市YaYa’s泰国餐厅的经营者似乎有种奇怪的幽默感，他们贴出了一张写有数学方程式的海报，解开方程式就能获得密码。

　　A photograph uploaded to Reddit by user Joshua_Glock shows the complicated maths question.

　　Reddit用户约书亚.格洛克上传的一张图片显示出这道题有多复杂。

　　He asked for help on the site and wrote: "This is the Wifi password at a local Thai restaurant. I’m determined to join their newtwork.

　　他在网站上寻求帮助，是这样写的：“这道题的答案就是本地一家泰国餐厅的Wi-Fi密码。我希望破解密码联上网。”

　　"Where are the math wizards at?"

　　“数学奇才们都快现身吧。”

　　And despite a number of ’maths wizards’ trying to solve the problem, a solution still hasn’t been found.

　　并且，尽管有一些“数学天才”们尝试解出方程，但还是没能给出正确答案。

　　Still, some Reddit users suspect the problem cannot be solved.

　　一些用户认为这是道捉弄人的问题，压根就没有正确答案。

　　One said the equation was a ’summation of a binomial probability density function’ - and we have no idea what that means either.

　　还有个用户则称这道数学题是“二项式概率密度函数的和”——然而我们仍找不到答案。

　　The same commenter said the equation could be wrong, explaining that they ’strongly doubt the divider between N/m should even be there.’

　　还是这个网友，他说这道方程其实本身就可能是错的，表示“强烈怀疑N/M的算法。”

　　It is unclear why Yaya’s owners decided to make it so difficult to log on at the restaurant.

　　目前还不清楚为何Yaya’s的老板想出一道出此难的题目以阻止顾客上网。

　　However, some have suggested it could be that they became tired of people stealing the signal.

　　不过，也有人认为他们厌倦了大家蹭网的行为。

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