<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[greatzls的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/greatzls</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; greatzls]]></copyright><item><title><![CDATA[LWIP netconnAPI UDP]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/135760778</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/135760778</guid><author>greatzls</author><pubDate>Mon, 22 Jan 2024 23:37:41 +0800</pubDate><description><![CDATA[netconn API 建立UDP通讯踩坑]]></description><category></category></item><item><title><![CDATA[stm32 printf重定向]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/135636735</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/135636735</guid><author>greatzls</author><pubDate>Tue, 16 Jan 2024 22:09:27 +0800</pubDate><description><![CDATA[return ch;]]></description><category></category></item><item><title><![CDATA[cubemx rcc配置]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/135636707</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/135636707</guid><author>greatzls</author><pubDate>Tue, 16 Jan 2024 22:08:17 +0800</pubDate><description><![CDATA[不加调试卡死在PLL configure。]]></description><category></category></item><item><title><![CDATA[Matlab的s-function基本结构]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/126542119</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/126542119</guid><author>greatzls</author><pubDate>Fri, 26 Aug 2022 14:00:37 +0800</pubDate><description><![CDATA[【代码】Matlab的s-function基本结构。]]></description><category></category></item><item><title><![CDATA[应用泛函课程笔记]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/123412659</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/123412659</guid><author>greatzls</author><pubDate>Thu, 10 Mar 2022 22:26:44 +0800</pubDate><description><![CDATA[集合

分类：

有限集（空集、自然数集）
	无限集（可列，不可列）
势

自然数集的势

实数集的势





无限集合可以与他的真子集对等。（充要）

可列集的势最小

开集

内点：集合内的点的邻域仍包含于集合。

内部：所有内点

开集：A的所有点都是内点。

运算性质：

任意的开的并是开
	有限多个开的交是开
R中任何非空开集G均可表示为至多可列个互不相交的开区间的并（G的构成区间）

闭集

极限点（聚点）A中的点的邻域仍包含A的一部分

孤立点 A中的点的邻域里不包含A

导集A'： 全部聚]]></description><category></category></item><item><title><![CDATA[Myideas]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/123372823</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/123372823</guid><author>greatzls</author><pubDate>Wed, 09 Mar 2022 11:20:00 +0800</pubDate><description><![CDATA[input：[x,y,z],[]

output::[]

loss:


]]></description><category></category></item><item><title><![CDATA[鲁棒H∞笔记]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/123365578</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/123365578</guid><author>greatzls</author><pubDate>Tue, 08 Mar 2022 23:06:25 +0800</pubDate><description><![CDATA[信号与系统

1.1数学基础

度量空间：距离的推广。一个空间，定义了某种度量，就称为某种度量空间。是两个元素的运算。
example：有界数列空间，可数数列空间

收敛与极限：度量是距离的一种推广，度量空间中一个序列无限接近另一个元素，称序列收敛到极限。
	cauchy序列，完备性：一个序列，最终元素不断靠近，是一个cauchy序列。但这个序列不一定是收敛的。如果空间中的每一个cauchy序列都收敛，空间就是完备的。


赋范空间：定义了范数的空间
	banach空间：范数是向量元素自身的，由向量可以..]]></description><category></category></item><item><title><![CDATA[机器人动力学课程笔记]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/123341518</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/123341518</guid><author>greatzls</author><pubDate>Mon, 07 Mar 2022 22:21:17 +0800</pubDate><description><![CDATA[运动学

坐标系变化

从0系到1系，is created by 1系的单位正交向量在0系中的坐标。可以用于从1系到0系的坐标转换。

描述的是从0系到1系的旋转变换，但是，进行的是1系坐标向0系的转变。





1.2旋转变换


...]]></description><category></category></item><item><title><![CDATA[非线性控制]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/123341112</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/123341112</guid><author>greatzls</author><pubDate>Mon, 07 Mar 2022 22:17:09 +0800</pubDate><description><![CDATA[目录

Introduction

Introduction

some basic concept

unforced system

aotunomous system-----time invariant system



Equilibrium point/Working point/train point

single equilibrium
	continuous
	multiple isolated equilibrium


Taylor expansion 近似线性化

abnorm.]]></description><category></category></item><item><title><![CDATA[EAP ( English for Academic purpose)]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/123255449</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/123255449</guid><author>greatzls</author><pubDate>Thu, 03 Mar 2022 15:45:13 +0800</pubDate><description><![CDATA[目录



第一周




	第一周
	
	Run-on Sentence or comma splices(粘连句)
tree structure：only one verb. others should be

clause
	非谓语动词化（ing，ed，to do）
	介词
	conjunctive adv 连接副词
	parallelism 排比
banboo structure: chinese

punctuation：

comma----&gt;,
	stop----&gt;.
	semi-]]></description><category></category></item><item><title><![CDATA[series]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/123193195</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/123193195</guid><author>greatzls</author><pubDate>Mon, 28 Feb 2022 21:41:20 +0800</pubDate><description><![CDATA[2.28

月报告、、、

申请、、

保密表格、、


]]></description><category></category></item><item><title><![CDATA[口罩识别2]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/121923121</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/121923121</guid><author>greatzls</author><pubDate>Tue, 14 Dec 2021 11:19:54 +0800</pubDate><description><![CDATA[h=(hin+2padding-kernel)/stride+1
]]></description><category></category></item><item><title><![CDATA[口罩识别1]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/121917266</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/121917266</guid><author>greatzls</author><pubDate>Tue, 14 Dec 2021 00:02:10 +0800</pubDate><description><![CDATA[1.预处理，图像的resize+padding灰色框以及对box进行响应处理。


]]></description><category></category></item><item><title><![CDATA[python 1]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/121894079</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/121894079</guid><author>greatzls</author><pubDate>Sun, 12 Dec 2021 21:35:08 +0800</pubDate><description><![CDATA[os工作目录

os.chdir("")改变路径

os.getcwd()得到工作路径


]]></description><category></category></item><item><title><![CDATA[c++ 在指定元素后向forward_list添加新元素]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/119969066</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/119969066</guid><author>greatzls</author><pubDate>Sat, 28 Aug 2021 15:50:26 +0800</pubDate><description><![CDATA[void fain(forward_list&lt;string&gt;&amp; li, string&amp; fst, string&amp; inst) {
	forward_list&lt;string&gt;::iterator it = li.begin(),tend;
	bool i = true;
	while (it != li.end()) {
	
		if (*it == fst) { 
			li.insert_after(it, inst);
			i = false;
		}.]]></description><category></category></item><item><title><![CDATA[c++ int型奇偶分离]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/119966237</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/119966237</guid><author>greatzls</author><pubDate>Sat, 28 Aug 2021 11:56:00 +0800</pubDate><description><![CDATA[#include "mylib7.h"
#include &lt;fstream&gt;
#include &lt;list&gt;
#include &lt;deque&gt;
using std::list;
using std::deque;
bool ifeq(vector&lt;int&gt;&amp; a, vector&lt;int&gt;&amp; b);
bool ifeq(list&lt;int&gt;&amp; a, list&lt;int&gt;&amp; b);

int mai.]]></description><category></category></item><item><title><![CDATA[c++ 比较两个vector或者list是否相等]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/119965461</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/119965461</guid><author>greatzls</author><pubDate>Sat, 28 Aug 2021 11:10:27 +0800</pubDate><description><![CDATA[#include "mylib7.h"
#include &lt;fstream&gt;
#include &lt;list&gt;

using std::list;
bool ifeq(vector&lt;int&gt;&amp; a, vector&lt;int&gt;&amp; b);
bool ifeq(list&lt;int&gt;&amp; a, list&lt;int&gt;&amp; b);

int main() {
	list&lt;int&gt; a, b;
	a = { 1,2,.]]></description><category></category></item><item><title><![CDATA[c++ vector迭代器]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/119946445</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/119946445</guid><author>greatzls</author><pubDate>Fri, 27 Aug 2021 09:52:59 +0800</pubDate><description><![CDATA[vector&lt;int&gt;::iterator ans;这样定义的一个是迭代器

begin(),end(),返回的是指向容器首元素和末尾元素后一个的两个指针。


#include "mylib7.h"
#include &lt;fstream&gt;


vector&lt;int&gt;::iterator finds(vector&lt;int&gt;::iterator b , vector&lt;int&gt;::iterator e  ,int a);

int main() {
	v]]></description><category></category></item><item><title><![CDATA[c++ txt文件读取与写入]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/119940863</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/119940863</guid><author>greatzls</author><pubDate>Thu, 26 Aug 2021 21:44:27 +0800</pubDate><description><![CDATA[#include &lt;fstream&gt;

using std::istringstream;
using std::ifstream;
using std::ofstream;
using std::ostringstream;

头文件fstream，四个类型。

istringstream：字符串流类型

ifstream：读入文件内的字符串流

ofstream：打开一个文件，默认是截取，即文件的旧数据被丢弃。

        因此可以用ofstream::app，app（...]]></description><category></category></item><item><title><![CDATA[c++ 友元（2）]]></title><link>https://blog.youkuaiyun.com/greatzls/article/details/119904078</link><guid>https://blog.youkuaiyun.com/greatzls/article/details/119904078</guid><author>greatzls</author><pubDate>Wed, 25 Aug 2021 09:43:26 +0800</pubDate><description><![CDATA[一个类的成员函数作为另一个类的友元。

Window_mgr类中的clear作为Screen的友元。遵循步骤：

需要先定义Window_mgr类；

声明clear函数，但不能定义，因为Screen还没有定义，不能使用Screen类。

定义Screen类

在类外定义clear。


typedef string::size_type screenindex;

class Window_mgr {
public:
	void clear(...]]></description><category></category></item></channel></rss>