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## Main Question or Discussion Point

**Is there more than one meaning of the notation "f(x)=[x]"?**

In my real analysis text book there is a question that says:

Decide whether [tex]f(x)=[x][/tex] is bounded above or below on the interval [tex][0,a][/tex] where [tex]a[/tex] is arbitrary, and whether the function takes on it's maximum or minimum value within that same interval.

This question is very straightforward, assuming [tex][x]=x[/tex]. But if that is the case, then the choice of notation is very strange.

Is there another way to interpret the notation's meaning?