Is Non-Euclidean geometry the end of an era or the beginning of another one?
非欧几何是一个时代的结束?还是开始? 作者: 4分33 秒 数学史家Judith Grabiner说过: If you ask a mathematician “why?” the mathematician will give you a proof. But when you ask a historian “why?” the historian will tell …
Is Non-Euclidean geometry the end of an era or the beginning of another one? Read More