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第四讲：矢量合成Lecture 4: Vector Composition |
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| 课程网址: | http://videolectures.net/stanfordee364aw08_boyd_lec04/ |
| 主讲教师: | Stephen P. Boyd |
| 开课单位: | 斯坦福大学 |
| 开课时间: | 2010-08-17 |
| 课程语种: | 英语 |
| 中文简介: |  这里你想知道保持凸性的操作，我们看看一些非常明显的简单的，你知道，非负加权和，这很明显。合成如果是仿射函数，那也很容易展示。 Pointwise maximum supremum，我们也看过例子，当你达到某种 supremum 时，你实际上可以开始展示一些乍一看很复杂的东西的凸性。 .. |
| 课程简介: | And here you want to know about the operations that preserve convexity, and we look at sort of the really obvious simple ones, you know, nonnegative weighted sum, that’s kind of obvious. Composition if an affine function, that’s also very easy to show. Pointwise maximum supremum, we looked at examples too, and by the time you get to sort of supremum, you can actually start showing convexity of some things that at first glance look pretty complicated. .. |
| 关 键 词: | 凸性; 非负加权和; 仿射函数 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2021-08-11：nkq |
| 最后编审: | 2021-08-28：nkq |
| 阅读次数: | 58 |