摘要: 看"Math for Programmers"时遇到一句: With some initial velocity perpendicular to the black hole, the spaceship begins an elliptical orbit. 为啥不是抛物线或圆,而是椭圆呢? 搜 阅读全文
posted @ 2022-01-27 17:45 华容道专家 阅读(506) 评论(0) 推荐(0)