Question: Start and end of a range

Hello, perhaps my question is really stupid but I cannot find any hints on the help pages (Maple 10): How can I find the lower and upper bound of a range, i.e, "a" and "b" from "a..b"? The following does work lower:=proc(r::range) min($r) end proc ; but is, of course, very inefficient for large ranges and only works for integer bounds.
Please Wait...