Draw the graph of `y = [sin x], x in [0, 2pi], ` where `[*]` represents the greatest integer function.

Explanation

To draw the graph of \( y = [\sin x] \) for \( x \) in the interval \([0, 2\pi]\), where \([\cdot]\) denotes the greatest integer function, we will follow these steps:

### Step 1: Understand the sine function
The sine function, \( \sin x \), oscillates between -1 and 1 for all \( x \). In the interval \([0, 2\pi]\), it will take the following values:
- \( \sin 0 = 0 \)
- \( \sin \frac{\pi}{2} = 1 \)
- \( \sin \pi = 0 \)
- \( \sin \frac{3\pi}{2} = -1 \)
...