大炮打蚊子——大材小用!

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这句歇后语流传甚广,意思就是说虽然解决了问题,却费了很大的力气,可谓吃力不讨好,也有小题大做的意思.rn所以这句话一般都被用来形容看似聪明、实则缺乏智慧的人.rn但是,事实上,数学家们就没少干这种“发明了大炮却用来打蚊子”的事.rn费马大定理,又被称为“费马最后的定理”,由法国数学家费马提出.他断言当整数n>2时,关于x,y,z的方程xn+yn=zn没有正整数解.
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