draw the graph of `f(x)=x+[x]`, [.] denotes greatest integer function.

Explanation

To draw the graph of the function \( f(x) = x + [x] \), where \([x]\) denotes the greatest integer function (also known as the floor function), we can follow these steps:

### Step 1: Understand the function
The function \( f(x) = x + [x] \) can be interpreted as follows:
- For any real number \( x \), \([x]\) is the greatest integer less than or equal to \( x \).
- Therefore, \( f(x) \) can be rewritten as:
\[
f(x) = x + n \quad \text{where } n = [x]
...