# Part 1： Writing a Markdown file


# Part 2：Exercice 02
## 2.1 Using a notebook
### 2.1.1  About Calculating π
My computer tells me that π is approximately **3.141592653589793**

### 2.1.2  Using Buffon's Needle Method
But calculated using the [Buffon's needle](https://en.wikipedia.org/wiki/Buffon's_needle) method, we would obtain as an approximation **3.128911138923655**