ball (mathematics)中文什么意思
发音:
球 (数学)
- ball: n. 跳舞会；〔俚语〕狂欢会。 gi ...
- mathematics: n. 数学。 ★通常作单数用，带有“ ...
- mathematics a: 数学一
百科释义
In mathematics, a ball is the space inside a sphere. It may be a closed ball (including the boundary points) or an open ball (excluding them).
详细百科解释
