Files
josh-blog-source/source/_drafts/2022-03-29-josh-convex-optimization-1.md
T

32 lines
687 B
Markdown
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
---
title: Josh 的学习笔记之凸优化 (Part 1 —— 凸集)
mathjax: true
comments: true
copyright: true
sticky: false
toc:
enable: true
number: false
wrap: true
expand_all: true
max_depth: 4
categories:
- - Josh 的学习笔记
- 凸优化
tags:
- 凸优化
abbrlink: 43146ee9
date: 2022-03-29 11:07:04
---
# 仿射集合和凸集
  设 $x_1 \ne x_2$ 是 $\mathbf{R}^n$ 空间中的两个点,则具有下列形式的点
$$
y = \theta x_1 + (1-\theta)x_2,\theta \in \mathbf{R}
$$
组成一条穿过 $x_1$ 和 $x_2$ 的**直线**(*line*). 参数 $\theta = 0$ 对应 $y=x_2$,$\theta = 1$ 表明 $y = x_2$. 参数 $\theta$ 的值在
<!-- more -->