How to use markdown on Typora

[TOC]

1. Headline

use #headline to write a headline. The second headline is ##headline2 and so forth till 6th headline.

2. split line

use --- to establish a split line. more than three(included) - ,*, _, or +would also do.

3. font

**bold** for bold,

*italic* for italic,

***itlic bold*** for italic bold and

~~crossline~~ for ~~crossline~~

4. quotation

code:
>first order quotation
>>second order quotation
...
>>>>>>>> Nth order quotion

first order quotation

second order quotation
…

Nth order quotion

5. Category creating

easy to use, simply type [TOC] and you get the category out of headlines

6. Code blocks

1. inline tags

use ` on both sides of tagged content for one line codes

1	`hello world, print()`

hello world, print()

2. Multiline code blocks

use ``` on both sides to creat code blocks

Code:

```python
a = 1
b = 2
a + b
>>> 3
```

Result:

a = 1
b = 2
a + b 
>>>3

python closely after ````` tells what language and so what color of words to present

7. Links of website, pic, video

[百度](https://www.baidu.com/)

百度

[百度2][baidu]
[baidu]: https://ww.baidu.com
<https://www.baidu.com>

https://www.baidu.com

Mail: <tuy@mail.sustc.edu.cn>

tuy@mail.sustc.edu.cn

Pictures. (some might not load)

Online videos

<iframe height=498 width=850 src='https://www.bilibili.com/video/av1205827/?spm_id_from=333.788.videocard.19' frameborder=0 'allowfullscreen'></iframe>

8. list

this is list one
1. 1. this is list one
list 2
- * list 2
- list 2
  
  var a = 10; //code in lists

9. task management

- [x] Task 1

- [ ] Task 2

Remember that for undone tasks, you need to add space in [ ].

Task 1
Task 2
Task 3

10. Charts

1. table

start a new line with |----|----| and “enter” when finished. Adjustments could be made later like word/excel.

name	gender	major

2. Charts

11. Flow chart

notice that when typing st=>start: begining sentence there is a blankspace after : and the same for other five type of var: end, operation, subroutine, condition, and inputoutput
Also be careful that cond(yes) and cond(no) should come closely next to its former flow sentence and no blankspace should be placed. For example, codes like this doesn’t work:
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2
3
st->op->cond

cond(yes)->io->end

st=>start: input x
op=>operation: x + 1
cond=>condition: x > 10
io=>inputoutput: x
sub=>subroutine: x * 2
e=>end: end
st->op->cond
cond(yes)->io->e
cond(no)->sub(right)->op

12. Font color, size, face

13. Escape character (转义字符)

use HTML notations \ before every character that contrast with markdown programming.

code

\\  //反斜杠
\`  //反引号
\*  //星号
\{\} //大括号

demo

{}

14. Comment

Outside of comments  outside of comments

Outside of commentsoutside of comments

15. In-text Jump-to

use HTML tags to achieve this purpose, only works on html formed file, unavilable on pdf; " "or ' 'or adding no quotation marks also works

define a tag: <span id="jump">destination</span>
jump to: [click to jump](#jump)

Demo:

this is for test in-text-jump

hello

use link to jump, only works for headlines (does not work for webhtml)

[click to jump](#8. List)

16. Cross reference

to be continued…

17 Math

Parentheses: (\frac{}{}) gives small parentheses: $(\frac{\sqrt a}{y^3})$, while \left(...\right) helps adjust the size of parentheses. \left(\frac{1}{2a}\right) gives $\left(\frac{\sqrt a}{y^3}\right)$.

\lbrace gives $\lbrace$ , \rbrace gives $\rbrace$. There are also invisible parentheses, denoted by .: \left.\frac12\right\rbrace is $\left.\frac12\right\rbrace$. \left\lbrace\frac12\right. is $\left\lbrace\frac12\right.$ which is useful in array or multilined equations.
Fracetions: \frac{..}{..} and {..\over..} show the same thing ${a+\sqrt x \over \int_0^\infin x{\rm d}x}$. Remember that \cfrac gives continued fraction $\cfrac{a_1}{a_2+\cfrac{1}{a_3+\cfrac{1}{a_4}}}$. Also gives a larger and better format for $\cfrac{a+\sqrt x}{\int_0^\infty x{\rm d}x}$.
special functions: \lim_{x\to 0} gives $\lim_{x\to 0}$, \displaystyle gives $\displaystyle \lim_{x\to 0}$. $\sum\limits_{x\to 0}^\infty$ gives $\sum\limits_{x\to 0}^\infty$
space: a\ b gives a small space $a\ b$, while a\quad b gives a larger space $a\quad b$, a\qquad b rather larger $a\qquad b$.
dots: \ldots gives $a_1,a_2,\ldots,a_n$ while \cdots gives $a_1+a_2+\cdots+a_n$. Note that there are vertical dots and inclined dots: \vdots and ddots give $\vdots$ and $\ddots$ which are useful in matrix. be careful that \ddot is $\ddot x$ and \dddot gives $\dddot x$
aligned equations:
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2
3
4
\begin{align}
y &= \sqrt {x^2} + \frac{ax^3+bx^2}{x^4+x^2} \\
&= x + \frac{ax+b}{x^2+1}\\
\end{align}
is

$$
\begin{align}
y &= \sqrt {x^2} + \frac{ax^3+bx^2}{x^4+x^2} \
&= x + \frac{ax+b}{x^2+1}\
\end{align}
$$
Custom command: $ \newcommand{\SES}[3]{0 \to #1 \to #2 \to #3 \to 0} $ gives $\newcommand{\SES}[3]{0 \to #1 \to #2 \to #3 \to 0}$ $\SES{A}{B}{C}$. (noting that there is a piece of code unseen before the result). \def does the same work: \def \ses#1#2#3{0\to #1\to #2\to #3\to 0}

18 New line

1 2	a b c space space shift+enter a b

a b c
a b

1
2
3

a b c shit+enter
a b