故事
The three collinear Lagrange points (L 1 , L 2 , L 3 ) were discovered by the Swiss mathematician Leonhard Euler around 1750, a decade before the Italian-born Joseph-Louis Lagrange discovered the remaining two. In 1772, Lagrange published an "Essay on the three-body problem ". In the first chapter he considered the general three-body problem. From that, in the second chapter, he demonstrated two special constant-pattern solutions , the collinear and the equilateral, for any three masses, with circular orbits .
部分信息来源于 Wikipedia, 授权协议 CC BY-SA 3.0.