1何谓无穷递降法1659年,法国数学家费马写信给他的一位朋友卡尔卡维,称自己创造了一种新的数学方法.由于费马的信并没有发表,人们一直无从了解他的这一方法.直到1879年,人们在荷兰莱顿大学图书馆惠更斯的手稿中发现了一篇论文,才知道这种方法就是无穷递降法.无穷递降法是证明某些不定方程无解时常用的一种方法.其证明模式大致是:先假设方程 What is infinite descent? In 1659, the French mathematician Fermat wrote to one of his friends, Carcavie, claiming that he had created a new mathematical method. As Fermat’s letter was not published, people never knew him This method was discovered in a manuscript by Huygens in the University of Leiden, the Netherlands, until 1879. The infinite descent method is an infinite descent method to prove that some indefinite equations have no solutions A commonly used method, the proof of which is roughly the first assumption equation