link

module2/exo1/toy_document_en.Rmd

@@ -11,14 +11,15 @@ knitr::opts_chunk$set(echo = TRUE)
 ```
 
 ## Asking the maths library
-My computer tells me that $\pi$ is approximatively
+My computer tells me that $\pi$ is *approximatively*
 
 
-```{r cars}
-pi()
+```{r}
+pi
 ```
 
-It is also straightforward to include figures. For example:
+## Buffon's needle
+Applying the method of [Buffon’s needle](https://en.wikipedia.org/wiki/Buffon%27s_needle_problem), we get the **approximation**
 
 ```{r pressure, echo=FALSE}
 plot(pressure)