Draw a graph of `f(x) = sin {x}`, where `{x}` represents the greatest integer function.

Explanation

We have `f(x) = sin {x}`
Now `{x} in [0, 1)` for all `x in R.`
`therefore` `sin {x} in [0, sin 1)`
First draw the graph of `y = {x}` from which we can easily draw the graph of `f(x) = sin {x}.`