Shortcuts

Shortcut Key	Function
Shift + Enter	Run Cell and Select Below
Ctrl + Enter	Run selected cells
A	Insert new cell above.
B	Insert new cell below.
N	Change cell type to Markdown.
Y	Change cell type to Code.
D, D	Delete cell
Ctrl + /	Comment/uncomment selected line or block
Ctrl + Shift + -	Split cell at cursor.
I, I	Interrupt kernel
0, 0	Restart kernel

Markdown

Headers

# Header 1

## Header 2

### Header 3

Emphasis Text
_italic_ or _italic_
**bold** or **bold**

Lists

- Item 1
- Item 2
  - Subitem A
  - Subitem B

1. First item
2. Second item

Links
[Link text](https://www.example.com)

Images
![Alt text](image_url.jpg)

Code Blocks

```python
print("Hello, world!")

Horizontal Rule
---

Blockquotes
> This is a blockquote.

Tables
| Column 1 | Column 2 |
|----------|----------|
|   Row 1  |   Row 1  |
|   Row 2  |   Row 2  |

Equations
$E = mc^2$
```