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Futures learning notes 001

Futures learning notes 001

Futures

Futures are derivate financial contract that obligate the parties to transact an asset at a predetermined future date and price.

The buyer must purchase or the seller must sell the underlying asset at the set price, regardless of the current market price at the expiration date.

futures can exchange in Shanghai Futures Exchange

Shanghai Futures Exchange can exchange follow futures:

Copper, Copper(BC), Lead, Zinc, Aluminium, Nickel, Tin


从个人角度的行业划分

从个人角度的行业划分

衣食住行

  • 衣(必):服装、个护
  • 食(必):农业、餐饮、
  • 住(必):房产、家电(+联网+智能)、
  • 行:车、物流、公共交通

医师作息

  • 医疗:药品
  • 教育:英语、搜索
  • 工作:会议、办公耗材
  • 休息&娱乐:

Acceptance in meditation

Acceptance in meditation

“Bring your attention to your head and face, noticing all sensations and feeling here. And just trying to accept all the feelings and sensations, rather than trying to judge them or change them in any way.”

This pratice works for me and alleviates my tension headache significantly.


Tension headache

Tension headache

Symptoms

Signs and symptoms of a tension headache include:

  • Dull, aching head pain
  • Sensation of tightness or pressure across your forehead or on the sides and back of your head
  • Tenderness on your scalp, neck and shoulder muscles

Tension headaches are divided into two main categories — episodic and chronic.

Episodic tension headaches

Episodic tension headaches can last from 30 minutes to a week. Frequent episodic tension headaches occur less than 15 days a month for at least three months. Frequent episodic tension headaches may become chronic.


高等数学主要内容

高等数学主要内容

一、空间解析几何与向量代数

  • 空间直角坐标系
  • 向量的概念及其线性;
  • 向量坐标、向量的数量积;
  • 平面方程、直线方程;
  • 曲面方程、曲线方程;
  • 二次曲面;

二、多元函数的微分学

  • 二元函数的极限与连续;
  • 【重点】偏导数;
  • 高阶偏导数;
  • 全微分;
  • 复合函数求导法则;
  • 隐函数求导法则;
  • 空间曲线的切线与法平面、曲面的切平面与法线;
  • 二元函数的极值;

三、重积分

  • 二重积分和三重积分的定义与性质;
  • 二重积分的计算;
  • 三重积分的计算;
  • 重积分的应用:曲面面积、曲顶柱体的体积、平面薄板的质量;

四、曲线积分与曲面积分

  • 对弧长曲线积分,对坐标的曲线积分的性质;
  • 两类曲线积分的计算;
  • 平面曲线积分与路径无关的条件
  • 两类曲面积分的定义与性质
  • 两类曲面积分的计算;

五、常微分方程

  • 微分方程的一般概念
  • 三类一阶微分方程;
  • 三类可降阶的二阶微分方程;
  • 二阶线性微分方程解的结构;
  • 二阶常系数线性齐次微分方程;

六、无穷级数

  • 数项级数的概念与性质;
  • 正项级数及其审敛法;
  • 一般项级数的审敛法;
  • 幂级数的收敛性和函数性质;
  • 函数的仄勒级数展开式;
  • 傅里叶级数;

高等数学主要内容

高等数学主要内容

一、空间解析几何与向量代数

  • 空间直角坐标系
  • 向量的概念及其线性;
  • 向量坐标、向量的数量积;
  • 平面方程、直线方程;
  • 曲面方程、曲线方程;
  • 二次曲面;

二、多元函数的微分学

  • 二元函数的极限与连续;
  • 【重点】偏导数;
  • 高阶偏导数;
  • 全微分;
  • 复合函数求导法则;
  • 隐函数求导法则;
  • 空间曲线的切线与法平面、曲面的切平面与法线;
  • 二元函数的极值;

三、重积分

  • 二重积分和三重积分的定义与性质;
  • 二重积分的计算;
  • 三重积分的计算;
  • 重积分的应用:曲面面积、曲顶柱体的体积、平面薄板的质量;

四、曲线积分与曲面积分

  • 对弧长曲线积分,对坐标的曲线积分的性质;
  • 两类曲线积分的计算;
  • 平面曲线积分与路径无关的条件
  • 两类曲面积分的定义与性质
  • 两类曲面积分的计算;

五、常微分方程

  • 微分方程的一般概念
  • 三类一阶微分方程;
  • 三类可降阶的二阶微分方程;
  • 二阶线性微分方程解的结构;
  • 二阶常系数线性齐次微分方程;

六、无穷级数

  • 数项级数的概念与性质;
  • 正项级数及其审敛法;
  • 一般项级数的审敛法;
  • 幂级数的收敛性和函数性质;
  • 函数的仄勒级数展开式;
  • 傅里叶级数;

Laravel配置阿里云企业邮箱

Laravel配置阿里云企业邮箱

企业邮箱POP、SMTP、IMAP地址列表如下:

(阿里云邮箱web端通用访问地址:https://qiye.aliyun.com/),客户端推荐以下参数配置:


How to persuade people using motivational interviewing?

Advise people.

How to persuade people using motivational interviewing?

Imaging a person that you want to advise him/her to do or not to do something.

I image I was advising my wife to sleep earlier, because she take care our baby at home and often sleep too late.

1. Ask her an open question about the behaviour?

For example, “Why you do that? I would like to hear how to you think that sincerely?”


The past five days

The past five days

I have been working every day for the past five days.

My plan is:

  • day1: set up the development enviroment and finish login page; # interface1: login [done]
  • day2: finish home page layout and choose a image from backend; # interface7: getImages; [part done]
  • day3: load a image and texts; # interface8: getTextList; [done]
  • day4: drag text by mouse, assign the text size and color; [part done]
  • day5: finish font style plug in, load the setting text style;
  • day6: interface: save style interface;

The reality is:


Why do I see it a burden

Why do I see it a burden?

1.The whole story

My friend asked me for a help recently. If I promise him, it would take me at least a week to finish the task which I can spend to improve my skill and prepare for the examination on April.

The task is to build a website to collect data which is important for him because he needs the data for research.